Many previously separate groups are now operating under the umbrella of a single authority.
许多原本分散的团体现在正在单一的权威领导下运作。
What have you done with my umbrella?
你把我的伞弄到哪里去了？
I put up my umbrella.
我撑开伞。
It's not worth bothering with an umbrella ─ the car's just outside.
不必打伞——汽车就停在外面。
She took a swipe at him with her umbrella.
她抡起雨伞朝他打去。