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你并不需要密不透水的外套,但是它需要对水有一定的抗性。
You don't need a waterproof outer layer, but it's good to have a significant degree of water resistance.
youdao
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你并不需要密不透水的外套,但是它需要对水有一定的抗性。
You don't need a waterproof outer layer, but it's good to have a significant degree of water resistance.
youdao