dangerous air

• 危险气体

dangerous air的用法和样例：

例句

1. They say it cuts the smoke and dangerous gases by up to eighty percent compared to open fires or simple traditional stoves.
   他们说这可以减少烟雾和危险气体的排放，同开放生火和普通炉子比较可以减少百分之八十的的排放。