Exhaust fumes are bad for your health.

废气对健康有害。

The city's streets are filthy and choked with exhaust fumes.

这座城市的街道肮脏不堪，充满了废气。

The health of our children is being endangered by exhaust fumes.

我们孩子们的健康正受到排放出的废气的损害。

Instead of exhaust fumes, the fuel-cell car produces soap and water.

燃料电池汽车不排放废气，产生的是脂肪酸盐和水。

The exhaust fumes are choking me.

排放的废气让我窒息。