Qīng / lǐ / pái / shuǐ / guǎn / hòu / ， / yù / shì / lǐ / de / é / ruì / shǎo / le / hěn / duō

清理排水管后，浴室里的蛾蚋少了很多。

After the drain was cleaned, there were far fewer drain flies in the bathroom.