Deadener
隔音材料
🗣️ 情景例句
They are above average 85. I'm among the upper third of my class.
我的平均成绩在85分以上。我是全班第三名。
To hiss
咻咻地叫
But he added music, which he wrote himself.
但是他给影片配上了他自己创作的音乐。