Stillingic acid
[化] 乌桕酸; 2,4-癸二烯酸
🧩 词语组成解析
🗣️ 情景例句
What did I forget?
我忘记什么？
When did you take the examination?
你什么时候去参加考试？
but hauling it out of the water proved to be a serious problem.
可是把盘子捞出却是一个很大的难题。