Dithionite
连二亚硫酸盐
🗣️ 情景例句
He's an extremist, and quite fanatical.
他是个极端分子，非常狂热。
What is the hottest area in this country?
这个国家最热的区域是哪里？
Some of my acquaintances in the country come up to town once or twice a year to visit the theatre as a special treat.
我在乡村有一些熟人，他们每年进城来看一回或几回戏，并把此看作一种特殊的享受。