| 释义 |
de.fo.li.antHdi:5fEJ7li7Ent, $-5foJ-n落叶剂During the Vietnam war, thousands of hectares of forest were destroyed with chemical defoliant (= substance which causes the leaves to drop off trees). [U]越战期间，数千公顷的森林被化学落叶剂摧毁了。Agent orange is a powerful defoliant. [C]橙剂是一种强效落叶剂。
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