Itispossiblethatmany的精選

問題詳情：將短文中畫線部分的句子翻譯成中文。 Itispossiblethatmanyhealthproblemsarecausedbysmokeandotherkindsofairpollutioninpeople’shousesandapartments.Weknowaboutairpollutioninthestreetbutit’sabigsu...