管理员摘要：
例句： Get everything in writing in order to cover your back. 一切都要立字为据，以绝后患。 Water covers a large proportion of the earth's surface. 水覆盖了地球表面的大部分。 The book aims to cover all aspects of city life. 这本书……
例句：
Get everything in writing in order to cover your back.
一切都要立字为据，以绝后患。
Water covers a large proportion of the earth's surface.
水覆盖了地球表面的大部分。
The book aims to cover all aspects of city life.
这本书旨在涵盖城市生活的各个方面。