outer

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柯林斯词典

outer /ˈaʊtə/

1. ADJ The outer parts of something are the parts which contain or enclose the other parts, and which are furthest from the centre. 外面的[ADJ n]
He heard a voice in the outer room. 他听到外屋有人声。

剑桥词典

Ice had formed around the outer edge of the pond .
The telescope can view the outer reaches of the solar system .
They live on the outer edge of the city .
The outer leaves of the cabbage should be removed .
The outer layer of the jacket is waterproof .