Propionylcholine
[化] 丙酰胆碱
🗣️ 情景例句
They're open until nine o'clock.
他们开到九点。
Counsel must be followed, not praised.
忠告必须照办，而不是赞美。
Advertisers discovered years ago that all of us love to get something for nothing.
做广告的人们多年前就发现我们大家都喜欢免费得到东西。