Levulinate
乙酰丙酸
🗣️ 情景例句
Oh, it was no trouble.
哦 没什么麻烦。
They feel uneasy.
他们因不安而没法镇定下来。
They finally found a small gold coin which was almost worthless.
但最后找到的是一枚几乎一钱不值的小金币。