意思是:不辜负某人的期望。
拓展延伸:
live up to one's expectation辜负某人的期望。
eg:
We will never fail to live up to what our parents expect of us.我们决不辜负我们的父母对我们的期望。
We will live up to what our parents expect of us.我们决不辜负父母亲对我们的期望。
We will live up to that expectation.我们定会达到他们的期望。