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defoliants是什么意思？
  • 基础释义
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defoliants

柯林斯高阶英汉双解学习词典释义
  • N-MASS
    （尤用于战时的）脱叶剂
    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.