| 词汇 | 苦功 |
| 释义 | 苦功苦功[kǔ gōng]1.■hard work; painstaking effort:下苦功take pains; make painstaking efforts;下苦功学习study hard;她下苦功学习英语， 获得了高分。She took great pains with her English lessons and got high marks. |
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