Exclamation marks: when to use them
先写下记得的内容，再查看解释。不要填写个人信息。
查看解释
An exclamation mark is an end mark that signals strong feeling, sharp emphasis, or high urgency. In written English, it replaces a period to show that the speaker is reacting with excitement, fear, anger, or strong encouragement. Because it adds volume and intensity to your words, it changes how people interpret the tone of your message.
Watch out for that broken glass!