撑开雨伞的英文怎么说

撑开雨伞的英文：
put up an umbrella

I took an umbrella as a precaution.
我带了一把伞以防下雨。

An umbrella should be waterproof.
雨伞应能防水。

An umbrella organization,group,project
作为中央管理机构的组织、作为中央管理机构的团体、总项目.

A telescopic aerial,stand,umbrella
伸缩式天线、伸缩式支架、折叠伞.

No one has claimed the umbrella left in the reception .
还没有人来认领丢在接待处的雨伞。