...等等,我分不清,谁能帮我详细说一下时间前的介词怎么用吗?谢谢...答:2.在某日,星期几,(某年)某月某日,特定的早上、下午、晚上,或有修饰语的时间前用 on。如:on the third,on Monday,on July 1,(1921),on the morning of June 1,on Saturday afternoon,on the early summer,on the late afternoon... 3.在几点钟和一些固定短语中,用介词 “at”。如:at eight,at no...