英语词汇main track简单造句、意思、用法及例句-英语例句辞典

单词	main track
例句	原声例句 BBC 听力 2013年7月合集 Transport Canada said that any train carrying dangerous goods must have at least two operators and must not be left unattended on a main track. 交通部称任何装载危险物品的火车都必须配备至少两名操作员，且要道上必须有人看管。
随便看	mutually intelligible mutual obligation mutual obligations mutual recognition mutual relation mutual relationship mutual respect mutual responsibility mutual restraint mutuals mutual security mutual selection mutual support mutual suspicion mutual suspicions mutual trust mutual understanding muumuu muumuus muy Muzaffarpur Muzak Muzio muzzier muzziest

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