We must all work harder to reduce pollution.

我们都必须更加努力减少污染。

They are working to reduce pollution.

他们正在努力减少污染。

They took measures to reduce pollution.

他们采取了措施来降低污染。

We need to take measures to reduce pollution.

我们需要采取措施来减少污染。

We need to purify the air to reduce pollution.

我们需要净化空气以减少污染。

Educating the public helps to reduce pollution.

教育公众有助于减少污染。

The factory uses clean coal to reduce pollution.

工厂使用精煤来减少污染。

They took effective measures to reduce pollution.

他们采取了有效的措施来减少污染。

The environmental accords aim to reduce pollution.

环保协议旨在减少污染。

The government is working hard to reduce pollution.

政府正在努力减少污染。