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 want to buy shares in multi-national pharmaceutical company.
我想购买一家跨国医药公司的股票。
What is bothering you?
什么在困扰你？
Reward or punishment are meted out quite independent of human interference.
奖惩的实施是不受人意志支配的。