Dithionite
连二亚硫酸盐
🗣️ 情景例句
Well, I have a scheduling problem.
嗯，我在排工作方面遇到困难。
He is lifeless that is faultless.
人孰无过。
'At ten to eight.I bought a paper and waited for the train.'
“7点50分。我买了张报纸，等着车来。”