cover的意思是掩蔽；遮蓋。
例句如下：
1、The embankment was high enough to provide cover for us.?
堤埂很高，正好充當掩蔽。
2、The mountain makes good cover for the soldiers.?
這座山成了戰士的良好的掩蔽處。
3、Get everything in writing in order to cover your back.?
壹切都要立字為據，以絕後患。
4、Water covers a large proportion of the earth's surface.?
水覆蓋了地球表面的大部分。
5、The book aims to cover all aspects of city life.?
這本書旨在涵蓋城市生活的各個方面。
6、It would only take one phone call to blow their cover.?
只要撥打壹個電話就可揭穿他們的偽裝。
7、The new light cover increases this model's portability.?
新型的輕質外殼使這種型號攜帶更輕便。
8、Much of the country is covered by forest.?
森林覆蓋著這個國家的大片土地。
9、We did not even make enough money to cover the cost of the food.?
我們掙的錢甚至無法糊口。