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不透水
bùtòushuǐ
1. waterproof
2. watertight
3. impermeable

Character Breakdown

不
bù
no, not, un-; negative prefix
HSK 1 4 丶
透
tòu
to pierce, to penetrate, to pass through; thorough
HSK 5 10 丶
水
shuǐ
water, liquid, lotion, juice
HSK 1 4 丶

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