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显示第199–216节，共592节课
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Procurement: Buying for an Organization
Procurement refers to the organized method an organization uses to obtain needed goods or services. Goods are physical items such as desks, computers, or kitchen equipment. Services are tasks performed by outside workers, such as repairs, cleaning, delivery, or installation. A supplier is the person or business that provides those items or work. Procurement covers the full process: identifying the need, comparing quotes, agreeing on terms, ordering, and checking the results.
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Negative Sentences: Form and Common Patterns
A negative sentence expresses that a condition does not exist, an event did not occur, or an action is not taking place. The grammatical negation is usually created with the particle not, though dedicated negative words like never, nobody, and nothing also establish this meaning.
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Cut corners: avoid harmful shortcuts
In modern English, it describes taking an irresponsible shortcut during work, planning, or manufacturing. The phrase implies criticism because the person left out a necessary standard, compromising quality or safety.
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Of or Off: Choose the Right Word
Use of to connect parts, contents, materials, and groups. It can show what something contains, belongs to, or is made of. Use off for separation, movement away from a surface, or an inactive operating state. A device that is off may still be connected to a power source.
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Grammatical number: singular and plural forms
Grammatical number is the linguistic category that distinguishes between one entity (singular) and more than one entity (plural). Countable nouns reflect this distinction through endings such as -s or -es, or through irregular vowel changes. Uncountable nouns describe materials, concepts, or collective items as a whole mass and generally remain singular in English.
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Group discussion skills: speak clearly in meetings
A group discussion is a cooperative conversation where multiple participants evaluate an issue, exchange perspectives, or reach a joint decision. The goal is to build understanding as a team rather than win an individual debate.
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Root words: understand word parts
A root is the central part of a word that holds its primary meaning. An independent root can stand alone as a common English word, such as use, care, or wash. A bound root carries meaning within a family of words but cannot stand alone with that meaning, like port in transport and portable. Prefixes sit before the root to shift its direction or action, while suffixes sit after the root to establish its grammatical role as a noun, verb, adjective, or adverb.
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Although, though, even though: Connect contrasting ideas
These three subordinating connectors introduce a concessive clause. A concessive clause provides background information that makes the main outcome surprising or unlikely. The connector informs your listener that the first condition did not prevent the second statement from becoming reality.
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Since or For: Choosing Time Words
Since marks the beginning boundary of an unfinished period. It answers the question When did this begin? For measures the quantity or duration of time across that period. It answers the question How long has this continued?
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Foreign Phrases in English: Clear Everyday Guide
Ad hoc describes an arrangement created for a single immediate purpose rather than a permanent system. De facto describes a reality that exists in daily practice whether or not it has official legal status or formal recognition. Déjà vu can mean a feeling that a new moment has happened before, or figuratively a situation that seems familiar or repetitive. A faux pas is an embarrassing social blunder that violates polite conventions. Per se means by itself or strictly considered alone.
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Paranoid: Meaning and Better Alternatives
In everyday English, paranoid often describes strong worry or distrust that the speaker considers excessive. It can also appear in clinical language, where its meaning needs professional context. A sentence using paranoid does not establish a diagnosis or prove whether a danger exists.
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Material nouns: rules and simple examples
A material noun names a tangible substance, raw material, or matter that exists as an undivided mass rather than an individual countable object. In standard usage, these words do not take indefinite articles or plural endings unless their meaning shifts to a container, a specific document, a single serving, or a category.
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Procrastination meaning: Stop putting off tasks
Procrastination is the act of postponing an action or decision that requires your attention. It describes personal delay rather than a problem caused by outside events like bad weather or transport cancellations.
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Common English idioms: everyday listening guide
An idiom is an established phrase whose overall meaning cannot be understood simply by looking up each separate word. When you hear an idiom, treat the entire word group as a single unit of meaning within the conversation.
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Stubborn: meaning, tone, and alternatives
Stubborn describes a person, animal, or object that resists change, movement, or persuasion. When applied to people, it suggests an unreasonable refusal to listen or compromise. When applied to physical objects or situations, it describes something difficult to move, open, or solve.
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Caveat Meaning: One Condition to Remember
A caveat is a warning, condition, or limitation attached to an idea, offer, or agreement. It tells the listener what they must keep in mind before accepting or proceeding. It does not mean an idea is bad; rather, it identifies a boundary that requires careful attention.
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When or if: Choosing the Right Word
When introduces a time and often presents an event as expected. If introduces a condition. That condition may be uncertain, or it may describe a repeated situation. The choice tells us how the speaker presents the event; it does not guarantee what will happen.
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Past continuous: talking about past actions
The past continuous presents an activity as in progress at a specific past moment. It views an action from the inside as ongoing, without stating when it started or whether anyone completed it. It frequently supplies the background scene for a completed event or links two activities that were unfolding at the same time.
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