hand in 交上去(给老师或上级);交来(hand v.)
Each student has to hand in a composition once a week.
(1) hand down 传下来;传给 Our father handed down these customs to us.
(2) hand on…to…传给，传递They will hand the photograph to those who have not seen it.
(3) hand out 发给大家;散发 The teacher handed out the books at the beginning of the lesson.