英语词汇“to be tightened”的释义、用法及例句翻译-英汉例句词典

词汇	to be tightened
例句	Existing laws on obscenity are to be tightened.现行的关于淫秽内容的法律将会更加严厉。I think the fan belt needs to be tightened.我觉得风扇皮带需要拉紧一点。One of the screws had loosened a bit and had to be tightened.有颗螺丝有点松了，必须拧紧。
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