outer
/ˈaʊtɚ/
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adj. 外面的；外部的
- Thanks to its waterproof outer layer, the jacket keeps out rain while staying soft inside. 這件外套有防水的外層，能擋雨，裡面又保持柔軟。
其他意思
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adj. 外部的, 外面的, 在外的, 遠離中心的
The outer parts of something are the parts which contain or enclose the other parts, and which are furthest from the centre.
- He heard a voice in the outer room.