slogged away at

• v. 苦干

slogged away at的用法和样例：

例句

用作动词 (v.)

1. He plodded away at the work all night.
   他通宵苦干。
2. Tomorrow we'll have an exam, so I must grind away at it tonight.
   明天有考试，所以我今晚要苦干一番。