in the afternoon与on the afternoon区别?

in the afternoon与on the afternoon区别? by the afternoon与in/on the afternoon有什么区别 the film on in the afternoon. 是on the sunday afternoon 还是in the sunday afternoon in the afternoon of Friday还是on Friday afternoon 为什么是on Friday afternoon而不是in the Friday afternoon 应该是in the afternoon of July 11,还是on the afternoon of July 11? 在下午是用in the afternoon还是on the afternoon? 是on the sunday afternoon 還是in the sunday afternoon 是in the afternoon of April 30th 还是 on the afternoon of April 30th 英语翻译介词是用on the tomorrow afternoon还是in the tomorrow afternoon the afternoon of Monday前应该写in还是on On sunday ,Lucy is sing in the afternoon.怎么改? in the library 和on afternoon 哪个在前 the afternoon next day的前面用on还是in The film is（）this afternoon.on in off选择! at 4 :00 in the afternoon on Saturday? 是用in the morning/afternoon 还是on the morning/afternoon比如：I have four lessons in the morning.I have two lessons in the afternoon.