I saw him fly the kite yesterday afternoon see sb.do看见某人做了某事 I saw him flying the kite yesterday afternoon 昨天下午,我看见他【在】放风筝. 再问： 怎样分辨啊 再答： see sb. do 是看到整个过程 see sb. doing 是看到正在做 其它感官动词也是这样 我经常听到他弹钢琴 I often hear him play the piano 我刚才听到他【在】弹钢琴 i heard him playing the piano just now. 汉语能翻译出‘在’
