tell即可作及物动词也可作不及物动词，作及物动词时意为“告诉，说；辨别；吩咐；断定”，作不及物动词时意为“讲述；告发，泄密；识别”。

I've told you time after time not to do that.

我一再告诉过你不要干那件事。

Well? Are you going to tell us or not?

嗯？你想不想告诉我们？

only time will tell if the treatment has been successful.

只有时间才能证明这种疗法是否成功。

I told you we should have done it my way!

我跟你说过我们原本应该用我的方法来做这事。