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outer
01
外
situated on the outside of something else
02
外
located outside
03
外
being on or toward the outside of the body
例子
Our camping tent has an outer layer for waterproofing.
The outer layer of the Earth's atmosphere protects us from space debris.
The outer ring of the planet Saturn is made of ice and rock.
The outer edge of the city is lined with industrial warehouses.
The outer walls of the house are painted blue.
