wimp out (of)
贪安逸
A:Could you give me some advice on how to bring up my son properly?
A:怎样才能教子有方,你能否给我提点建议?
B:He's a bright boy, isn't he?
B:他不是很聪明吗?
A:But he always wimps out of difficulty.
A:可他总是一遇到困难就后退。
B:Don't worry, he'll make good progress step by step.
B:别着急,他会慢慢长进的。