名词
中文翻译：Unknown
同义词：
['tighten', 'tighten', 'constrict', 'contract', 'strain']
例句：
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2.
使
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3.
使
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1. Please fasten the seat belt before you start driving.
在开始驾驶之前请系好安全带。
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2.The tightrope walker must be very careful not to lose his balance.
走钢丝的人必须非常小心，以免失去平衡。
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3.The tension in the wire caused the spring to snap.
电线中的张力导致弹簧断裂。