有一些学生丢失了大量的我课堂发给他们的作业，直到现在还没有上交给我。

There are a few students in each class who are missing a number of assignments and worksheets which were given out but have not yet been returned.

youdao

有一些学生丢失了大量的我课堂发给他们的作业，直到现在还没有上交给我。

There are a few students in each class who are missing a number of assignments and worksheets which were given out but have not yet been returned.

youdao