hand sth in to sb还是hand sth to sb,好像都对?

问题描述:

hand sth in to sb还是hand sth to sb,好像都对?

是都对,意思不同.举个例子
I handed the book to the teacher.我把书递给老师.
I handed my homework in to the teacher.我把作业交给老师.
hand in 有上交的意思.