defoliant
英[ˌdiː'fəʊliənt]
美[ˌdiː'foʊliənt]
- n. <美>脱叶剂； 落叶剂
GRE
详细释义
Noun:
-
a chemical that is sprayed on plants and causes their leaves to fall off
双语例句
- 1. The crash had spilled a noxious defoliant into the planet's ecology, ravaging the native flora.
- 这次坠毁将一种有害的落叶剂洒入星球的生态系统中, 破坏着当地的植物群.
来自互联网
- 2. Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.
- 落叶剂: 落叶剂是一种化学粉剂或喷洒剂,施于植物以使树叶提早掉落.
来自互联网
用法讲解
- cotton defoliant 棉花脱叶剂
- chemical defoliant 化学脱叶剂
- systemic defoliant 内吸落叶剂
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