Communicate information to someone.
I will tell you the news when you get home.
我会在你回家时告诉你这个消息。
Provide details about a subject.
The brochure tells us about the history of the castle.
这本小册子告诉我们城堡的历史。
Express something in words.
She was excited to tell her story.
她很兴奋地讲述她的故事。
Reveal a secret.
Can you keep a secret if I tell you one?
如果我告诉你一个秘密,你能保守秘密吗?
Instruct or command someone to do something.
The teacher told the students to be quiet.
老师告诉学生们要安静。
Determine or identify something correctly.
You can tell the difference between the two by the color.
你可以通过颜色区分两者之间的差异。
Recognize the distinction between two things or people.
It's hard to tell the twins apart.
很难分辨这对双胞胎。
Cause an effect or impact, especially a negative one.
The long hours are starting to tell on her health.
长时间的工作开始影响她的健康。