| 词汇 | work at sth |
| 释义 | ● ˈwork at sth to make great efforts to achieve sth or do sth well 致力于；努力做◆ He's working at losing weight . 他正在努力减肥。◆ Learning to play the piano isn't easy . You have to work at it . 学弹钢琴不容易，你非得下功夫不可。See also work |
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