If you smell gas fumes or burning, take the car to your mechanic...如果你闻见汽油冒烟或燃烧的异味，应把车送修。He is an adept mechanic.他是个熟练的机械师。He is a garage mechanic.他是一名加油站技工。An elevator mechanic can work the machinery directly by turning...
An elevator mechanic can work the machinery directly by turning this lever.电梯修理工可以转动这根杠杆直接操作机器。He was a born mechanic with a flair for design.他生来就是个有设计天赋的机械师。He worked as a motor mechanic.他是一名汽车修理工。...
AID or artificial insemination by a donor他精人工授精In animal breeding, especially cattle - breeding, artificial insemination is now widely used.在动物生育, 特别是牛的生育中, 人工授精已经广泛使用.These cases particularly recommend themselves to tre...