1.clean vt.打扫，清除
1）他们正在擦教室的窗子。
They are cleaning the windows of the classroom.
彻底清扫clean up
清理里面clean out
clean adj. 干净的，无杂质的
2）我们必须保持教室清洁。
We must keep our classroom clean.
2. read v.读；识字；
1）他们正在看杂志/报纸/书。
They are reading
magazines / newspapers / books.
2）他把故事读给我们听。
He is reading a story to us.
=He is reading us a story.
