to hammer away at
[phrase form: hammer]
01
不懈努力, 坚持
to make a great and persistent effort in order to accomplish or resolve a task or problem
例子
He continued to hammer away at his research project until he found a breakthrough.
他继续埋头苦干于他的研究项目，直到找到了突破。
Despite the challenges, she kept hammering away at her novel until it was finally published.
尽管面临挑战，她仍继续埋头苦干于她的小说，直到它最终出版。
