Disulfoxide
二亚砜
🗣️ 情景例句
How was your trip?
你这一趟旅途还好吧？
Nothing is really beautiful but truth.
只有真理才是真美。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。