Ethylchloralurethan
[医] 乙基氯醛乌拉坦, 索眠拿
🗣️ 情景例句
How many brothers and sistes do you have?
你有多少个兄弟姐妹？
I approve.
赞成！
Officials from Greenwich Observatory have the clock checked twice a day.
格林尼治天文台的官员们每天两次派人矫正此钟。