Scba
n. 正压式呼吸器（石油、煤炭、消防）; [医][=self-contained breathing apparatus]自我控制呼吸仪，配套呼吸装置
🗣️ 情景例句
It's true.
对。
Kind words are the music of the world.
善言是世上的音乐。
Please sign here to show that you have received the money.
请在这儿签字以表明你已收到这笔钱。"