smocking

smocking的英语例句

1. Cars cause pollution, both smog and acid rain.

   汽车造成的污染既有烟雾也有酸雨。

2. The sky over the city was overspread with a heavy smog.

   城市上空罩上了一层烟雾.

3. attempts to reduce smog caused by traffic fumes

   旨在降低车辆尾气造成的烟雾的措施