keep at
短语坚持, 纠缠
词形变化
keeping at
keeps at
三单
keeps at
kept at
keeping at
现在分词
kept at
过去式
kept at
过去分词
释义与例句
v.
-
1.
To persist in.
及物Learning a new language is hard, but if you keep at it, you'll get better.
-
2.
To constrain (a person) to continue doing (a task).
及物If he doesn't get back to you right away, just keep at him and eventually you'll get an answer.