plug away 不灰心

【讲解】

plug是动词，本义为“用塞子堵住；宣传”，用在短语plug away中，则表示“（对某事物）努力不懈地苦干，苦读”。

【对话】

A:Hello, Henry. Say, how are your French lessons coming along?

A:你好，亨利。说说看，你的法语学得怎么样啦？

B:Well, to be honest, I still haven't made much progress. But the French test is approaching.

B:噢，老实说，我没有多大进步，可是法语就要考试了。

A:Don't be discouraged. Keep plugging away, and I think you'll eventually make a progress.

A:别泄气，不要灰心，我想你会有进步的。

B:I suppose I do.

B:我也这样想。