1、Who says protecting yourself from sniper attacks or chemical warfare needs to be ugly business?
誰說，保護(hù)自己免受狙擊手的襲擊或化學(xué)戰(zhàn)需要丑陋的業(yè)務(wù)？

2、The effects of chemical warfare are very terrible, causing great harm.
化學(xué)戰(zhàn)的后果是很可怕的，危害很大。

3、Some people are worried chemical warfare may follow.
一些人擔(dān)心可能后續(xù)的化學(xué)戰(zhàn)。

chemical warfare翻譯