Ethanedioic acid
n. 乙二酸; 草酸
🧩 词语组成解析
🗣️ 情景例句
What are you doing?
你在干什么？
Let things take their course.
听其自然。
Sure enough, Rastus arrived punctually at seven o'clock that evening.
果然，当天晚上7点正，拉斯特斯准时回来了。