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
I don't get it.
我不明白。
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
How's your English coming along?
你英语学得怎样了？