Levulinate
乙酰丙酸
🗣️ 情景例句
The match was postponed to the following Saturday because of bad weather.
比赛因天气不好而延期到下个星期六进行。
Keep some till more come.
更多的到手以前，要保持手里的一点。
Some people think that the weather is unpleasant, the city ugly and dirty, the competition fierce and the streets unsafe.
有些人认为，这儿的气候不佳，市容丑陋肮脏，竞争激烈，街上不安全。