outer

US /ˈaʊ.t̬ɚ/
UK /ˈaʊ.t̬ɚ/
"outer" picture
1.

外部的

on the outside; external

:
The outer layer of the coat is waterproof.
外套的外层是防水的。
The planet's outer atmosphere is very thin.
行星的外层大气非常稀薄。
2.

离中心更远的, 外围的

further from the center or middle

:
The outer ring of the target is worth fewer points.
靶子的外环得分较低。
They live on the outer edge of the city.
他们住在城市的外围