拧下车轮螺母，放掉车胎的气，换上备用胎。Remove wheelnuts, let down tyre, put on spare.先松开螺母，然后卸下车轮。First loosen the nuts, then take off the wheel.这个旧螺母咬不住 扣儿.This old nut won't bite [ grip ] ....
今天你帮哪个最有名的明星做宣传 呢 ?Who's the most famous person you publicized today?他购买了一家广播电台,然后利用空闲的广告牌为电台做宣传.Purchasing a radio station and using empty billboards to advertise it.与终端用户 、 要的OEM厂商及设计院联系,为公司产品做宣传.Contact with end ...