?airpollution可以翻譯為空氣污染。它指的是空氣中存在的有害物質，對人類和環境造成的危害。空氣污染主要由工業排放、交通運輸、農業活動和能源消耗等人類活動引起，也可能受到自然因素的影響。

用法：

1. Air pollution is a major environmental problem in many cities.

空氣污染是許多城市面臨的重大環境問題。

2. The government has implemented strict policies to reduce air pollution.

已經實施了嚴格的來減少空氣污染。

3. The air pollution in this area is caused by the factories nearby.

這個地區的空氣污染是由附近的工廠引起的。

4. Children are more vulnerable to the effects of air pollution.

兒童更容易受到空氣污染的影響。

5. We need to take action to combat air pollution and protect our planet.

我們需要采取行動來應對空氣污染，保護我們的地球。

例句參考：

1. The city has been struggling with severe air pollution for years, leading to numerous health problems for its residents.

這座城市多年來一直在與嚴重的空氣污染作斗爭，導致居民出現了許多健康問題。

2. The government has launched a campaign to reduce air pollution, including stricter regulations on emissions from factories and vehicles.

發起了一項減少空氣污染的運動，包括對工廠和車輛排放的更嚴格的規定。

3. The air pollution index in this area has reached dangerous levels, prompting authorities to issue a health warning.

這個地區的空氣污染指數已經達到危險水平，促使發布健康告。

4. Many people have started wearing masks to protect themselves from the harmful effects of air pollution.

許多人開始戴口罩來保護自己免受空氣污染的有害影響。

5. The government is investing in clean energy sources in order to reduce air pollution and promote sustainable development.

正在投資清潔能源，以減少空氣污染，推動可持續發展。