Use of these chemicals may present a fire risk.
使用这些化学品可能有失火的危险。
When did this word come into common use?
这个词是什么时候普遍使用起来的？
All the materials used were of the highest grade.
使用的材料全是优质品。
This door should only be used in an emergency.
这道门只能在紧急情况下使用。
The bar is for the use of members only.
酒吧仅供会员使用。