1. The use of defoliants in agriculture can help improve crop yields by removing excess leaves.
农业中使用除叶剂可以通过去除多余的叶子来提高作物产量。

2. Some defoliants are harmful to the environment and can cause long-term damage to ecosystems.
一些除叶剂对环境有害，可能会对生态系统造成长期损害。

3. Defoliants are often used in forestry to clear vegetation and make it easier to access timber.
除叶剂通常用于林业，以清除植被并使木材更容易获得。

4. Military forces have been known to use defoliants to remove foliage and expose enemy positions.
军队已知使用除叶剂清除植被，暴露敌人的位置。

5. The use of defoliants in gardening can help control weed growth and promote healthy plant growth.
在园艺中使用除叶剂可以帮助控制杂草生长，促进植物健康生长。

6. Some countries have banned the use of defoliants due to their harmful effects on human health and the environment.
一些国家禁止使用除叶剂，因为其对人类健康和环境的有害影响。