a.

1. 外部的，外面的，外表的；外来的
   The seed has a hard exterior covering.

   这种子外壳很硬。

2. （适合）外用，户外用的
3. 对外的，外交上的
   an exterior policy

   对外政策

n.

1. 外部，外表，表面；外貌[U][C]
   It is difficult to judge a person by his exterior.

   依据外表难以评判一个人。

2. （戏剧等的）户外场景；（电影等的）外景[C]

adj.

n.

1. the outer surface or structure of something.
   ▸a person's apparent behaviour or demeanour.
2. (in filming) an outdoor scene.