defoliant
柯林斯詞典
1. N-MASS A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy. 脫葉劑
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defoliant /di??f??l??nt/ (defoliants)
劍橋詞典
- a chemical that is used to make the leaves drop off plants
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