Chemical Warfare Research Department的用法和樣例：
例句
- The effects of chemical warfare are very terrible, causing great harm.
化學(xué)戰的后果是很可怕的，危害很大。 - This chemical warfare being waged in our fields might suggest that the plants have no defences of their own against disease.
在我們的田間展開(kāi)的這場(chǎng)化學(xué)戰似乎說(shuō)明植物沒(méi)有自己的防御系統抵抗疾病人侵。
