动词
中文翻译：过度努力
同义词：
['force', 'exert', 'labor']
例句：
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1.She belaboured the book with her pen until it was yellowed.
她用笔用力地翻阅这本书，直到它变黄了。
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2. The farmer belaboured the soil with his hoe to prepare it for planting.
农民用他的锄头使劲地翻动土壤，为播种做准备。
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3. He belaboured his way through the crowd, determined not to be late.
他努力挤过人群，决心不迟到。