The clothes are made by machines.还是The clothes are made by machine.那个句子对?
问题描述：
The clothes are made by machines.还是The clothes are made by machine.那个句子对?
答
用machines
复数指代一个种类.您的意思是都对吗？第二个不对啊 要不就用by machines,要不就by the machine.这个词应该没特殊用法。但是词典中没有这种用法啊，都是by加单数额，我记忆中好像是这样。要不先记下来，等下礼拜去问问老师吧。