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defoliant是什麼意思 defoliant的用法 defoliant怎麼讀

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defoliant

英 [diː'fəʊlɪənt]美 [,di'folɪənt]

n. (美)[農藥] 落葉劑;[農藥] 脫葉劑

ing-bottom: 99.56%;">defoliant是什麼意思 defoliant的用法 defoliant怎麼讀

中文詞源

defoliant 落葉劑

de-, 奪去,損毀。foliage, 葉子。用來指落葉劑。

英語詞源

defoliant (adj.)

1943, from defoliate + -ant.

權威例句

1. The crash had spilled a noxious defoliant into the planet's ecology, ravaging the native flora.

這次墜毀將一種有害的落葉劑灑入星球的生態系統中, 破壞着當地的植物羣.

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2. Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.

落葉劑: 落葉劑是一種化學粉劑或噴灑劑,施於植物以使樹葉提早掉落.

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