smog
Definition
A type of air pollution formed by smoke and fog, often seen in large cities.
中文 由烟雾和雾气形成的空气污染，常见于大城市。
Example
"The city was covered in a thick layer of smog during the winter months."
A type of air pollution formed by smoke and fog, often seen in large cities.
中文 由烟雾和雾气形成的空气污染，常见于大城市。
"The city was covered in a thick layer of smog during the winter months."