can't hold a candle to..
不能...比；逊色于...

I can't hold a candle to Tom.
我不能和汤姆相提并论。

This one is good, but. It can't hold a candle to that one.
这个不错，但是不能和那个比。

She is pretty good, but she can't hold a candle to her mother.
她很漂亮，但是还是不及她妈妈。

A: Look, Tom got an "A", but you just got a "C".
瞧瞧，汤姆得了个A，而你只得了C。
B: I can't hold a candle to Tom.
我不能和汤姆相提并论。
A: Why? Both of you are taught by the same teacher.
为什么？你们都是同一个老师教的。
B: Because he is smarter than me.
因为他比我聪明。