O,o-dimethyldithiophosphoric acid
[化] O,O-二甲基二硫代磷酸
🧩 词语组成解析
🗣️ 情景例句
How come you look so tired?
你怎么看起来这么疲倦？
My brother used to speak French to me all the time.
我的兄弟过去总是对我说法语。
It's about four hundred yards down this street.
城堡就在这条街上，（离这儿）400码左右。