Ethoxal
乙(酯)草酸
🗣️ 情景例句
Good afternoon, sir.
下午好。
Diligence is the mother of good fortune.
勤勉是好运之母。
as Walter Sullivan has put it in his excellent book, We Are not Alone.
正如沃尔特·沙利文在其杰作《我们并不孤独》中阐述的。