如果你使用一个没有用过或大约6小时没用的水龙头，首先要开着水龙头让水流出来，冲洗水管，直到水变得跟正常一样冷。

If you're using a faucet that hasn't been in use for the past 6 hour or some, first flush the piped by letting the cold water run until it's as cold as it will get.

youdao

如果你使用一个没有用过或大约6小时没用的水龙头，首先要开着水龙头让水流出来，冲洗水管，直到水变得跟正常一样冷。

If you're using a faucet that hasn't been in use for the past 6 hour or some, first flush the piped by letting the cold water run until it's as cold as it will get.

youdao