Which of the following is right according to the passage?
Đáp án A
waterproof (adj): không thấm nước
= not allowing water to go through: không cho nước đi qua.
Các đáp án còn lại:
B. bao phủ bởi nước.
C. chứa đầy nước.
D. được làm sạch bằng nước.
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