几个介词的用法答:3.at+名词构成的词组:at a distance在一定距离,at a loss不知所措, at a time一次,at all一点也不,at any cost不惜一切代价,at best最好也只是,at first起初,at hand手头,at heart在内心里,at home在家;无拘束,at last最后,at least至少,at most最多,at once马上,at present目前,at sea不知所措,...
求大量动副词组和动介词组答:3.at+名词构成的词组 at a distance在一定距离,at a loss不知所措, at a time一次,at all一点也不,at any cost不惜一切代价,at best最好也只是,at first起初,at hand手头,at heart在内心里,at home在家;无拘束,at last最后,at least至少,at most最多,at once马上,at present目前。 三、介词on的...
帮我区分一下以下几个英语介词答:3.at+名词构成的词组:at a distance在一定距离,at a loss不知所措, at a time一次,at all一点也不,at any cost不惜一切代价,at best最好也只是,at first起初,at hand手头,at heart在内心里,at home在家;无拘束,at last最后,at least至少,at most最多,at once马上,at present目前,at sea不知所措,...