My question is; why does boiling water sound different to room temperature water when poured into a mug?

为什么沸腾的水倒进杯子时发出声音和室温的水不一样？

youdao

There was no coffee or tea in our room; just a coffee pot for making coffee and a pot for boiling water.

房间里没有咖啡和茶，只有一个煮咖啡的壶和另一个烧开水的壶。

youdao

There was no coffee or tea in our room; just a coffee pot for making coffee and a pot for boiling water.

房间里没有咖啡和茶，只有一个煮咖啡的壶和另一个烧开水的壶。

youdao