tell somebody something  告诉某人某事

Can you tell me the way to the station? 你能告诉我车站怎么走吗？

I'm sorry I didn't tell you this before.  不好意思，我之前没有告诉你。

Because I am your best friend I can tell you this. 因为我是你最好的朋友，才会告诉你的。

Tell Sharon that I want to see her.  告诉莎伦，我要见她。

Sharon won't be here until this afternoon.  莎伦下午之前不会过来的。