Deadener
隔音材料
🗣️ 情景例句
It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分，12岁以下的小孩30分。
It slipped my mind.
我不留神忘了。
I'm doing some washing and John is cooking dinner.
我正在洗衣服，约翰在做晚饭。