hand in和hand on的区别

hand in 是 “上交” 反义词是 hand out “分发”
e.g.Please hand in your homework in time.
（请及时上交作业）
hand on 是“转发” 或 “传递” 这个词组的on 是副词,on表示“继续”
往往构成词组 hand on sth.to sb.
e.g.Please hand on the newspaper to Tony./
Please hand the newspaper on to Tony.
（请把报纸转发给Tony.）