Propandiolal
[医] 甘油醛
🗣️ 情景例句
Typing is easy once you get the hang of it.
一旦你掌握诀窍，打字就很简单。
I asked him to play with me, but he wouldn't.
我请他和我玩，但是他不肯。
He waited until the volcano became quiet and he was able to return two days later.
他等到火山平静下来，两天以后又返回去。