fag at

• 辛辛苦苦地做

fag at的用法和样例：

例句

1. He fagged away at this work for weeks.
   这项工作他辛辛苦苦地干了好几个星期。
2. He had to cart his books to his home at the end of the term.
   学期终了时他不得不将他的书辛辛苦苦地送到家里去。

词汇搭配

• fag away at 辛辛苦苦地