a. being on the outside or further from a center
s. located outside
s. being on or toward the outside of the body
a. 外部的, 外面的, 在外的, 远离中心的
[机] 外部的, 外面的, 外侧的
1. The outer layer of the cake is decorated with frosting.
蛋糕的外层用糖霜装饰。
2. She wore an outer jacket to keep warm in the cold weather.
她穿了一件外套以在寒冷的天气中保持温暖。
3. The outer part of the planet is made up of rock and dust.
行星的外部由岩石和灰尘构成。