Air pollution in the city had reached four times the acceptable levels.

这座城市的空气污染程度曾高达可接受标准的四倍.

《简明英汉词典》

There are many sources of air pollution ; exhaust fumes, for example.

空气污染有许多来源, 例如废气.

《简明英汉词典》

The concern of this book is with air pollution.

本书的重点是论述空气污染.

辞典例句

We must do a good job in controlling the air pollution.

我们必须搞好控制空气污染的工作.

辞典例句

We shall take a series of measures to stop air pollution.

我们将采取一系列措施制止空气污染.

辞典例句

Contributors identify the major elements of the industrial air pollution situation.

作者指出了工业大气污染中的主要因素.

辞典例句

We are taking steps to prevent air pollution and stream pollution.

我们正在采取步骤防止空气污染和河流污染.

辞典例句

Exhaust gas has been incriminated in air pollution in cities.

废气已被视为城市空气污染的原因.

辞典例句

The use of such technique could result in air pollution.

使用这种技术会造成空气污染.

辞典例句

Air pollution contributes to respiratory diseases.

空气污染可促使呼吸系统疾病发生.

辞典例句

Air pollution is a global problem.

空气污染是全球性的问题.

辞典例句

The air pollution has become a big problem.

空气污染已成为大问题.

辞典例句

Air pollution control will be expensive.

控制空气污染是要费钱的.

辞典例句

However, some have realized the serious problem of the air pollution caused by the car.

但是, 人们已开始认识到由汽车引起的空气污染问题.

英语晨读30分（高一）

Thus the problem of air pollution would become less important than that of unemployment.

所以,空气污染问题与失业问题相比就显得不那么重要了.

英语晨读30分（高一）