楼主的问题让我有机会全面思考了这两词的区别.这区别用举例是无法说明的.我想第一：turn in包含了hand in的意思.turn in的4个常见释意中,第一个就是：Hand in,give over,as in I turned in my exam and left the room.内中包括了hand in.所以楼主所问的这两个词在这点上是一样的意思. 第二,turn in 还有其他三个意思,是hand in所没有的： Meaning #1:to surrender someone or something to another(同hand in) Meaning #2:make an entrance by turning from a road Meaning #3:carry out,as of performances:"They turned in a splendid effort" Meaning #4:go to bed in order to sleep
