脱叶剂是采棉前喷洒的药剂。
n. defoliant
misc. defoliating agent
橙剂是一种脱叶剂，曾在越战期间使用，已知会致癌和其他严重疾病。
Agent Orange is a defoliant that was used during the Vietnam War era and known to cause cancer and other serious illnesses.
韩国正在调查30年前是否有毒脱叶剂“橙剂”埋在韩美军基地的事件。
In South Korea, an investigation is underway to determine if the toxic defoliant Agent Orange was buried at a U.S. military base three decades ago.
越南与美国开始展开联合行动，清除有毒脱叶剂橙剂的残留物质。
Vietnam is beginning a joint operation with the United States to remove traces of the toxic defoliant agent orange.
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