umbrella
- n. 雨伞；保护伞；庇护；伞形结构
英英释意
- 1. a lightweight handheld collapsible canopy
- 2. a formation of military planes maintained over ground operations or targets;
- "an air umbrella over England"
- 3. having the function of uniting a group of similar things;
- "the Democratic Party is an umbrella for many liberal groups"
- "under the umbrella of capitalism"