Dithionite
连二亚硫酸盐
🗣️ 情景例句
They ask questions like Do you have any brothers or sisters?.
他们常问一些像“你有兄弟姐妹吗？”。
I go out for lunch at about 12:30.
我在大约12:30去外面吃午餐。
Yes, we might have to do that.
是呀，恐怕只有这么做了。