有些人擦黑板，有些人拖地板。

Some cleaned the blackboards, others mopped the floor.

我们之中三人扫地拖地板，其余的人擦玻璃。

Three of us sweep and mop the floor and the remainder clean the window.

这男孩不喜欢拖地板，但他还是尽量干得好。

The boy did not like to mop the floor, but he made the best of it.

她一直罗罗唆唆地催他去拖地板。

She's been nagging at him to mop the floor.