的意思 defoliant

1. The farmers sprayed defoliant on their crops to help them ripen faster.
农民们在作物上喷洒落叶剂，帮助它们更快成熟。

2. The military used defoliants to clear vegetation in the jungle during the war.
军方在战争期间使用落叶剂清理丛林中的植被。

3. Environmentalists are concerned about the long-term effects of defoliants on ecosystems.
环保人士担心落叶剂对生态系统的长期影响。

4. The government banned the use of certain defoliants due to their harmful effects on human health.
政府禁止使用某些落叶剂，因为它们对人类健康有害。

5. The defoliant caused the leaves on the trees to wither and fall off.
落叶剂导致树上的叶子枯萎掉落。

6. Scientists are researching alternative methods to defoliants that are safer for the environment.
科学家正在研究对环境更安全的落叶剂替代方法。