Umbilicaric acid
[化] 石耳酸
🧩 词语组成解析
🗣️ 情景例句
I have a complaint I would like to make.
我有些怨言。
I do not know whether you realize it, but this condition is essential to us.
我不知道你是否了解，但是，这个条件对我们是必要的。
That proved to be my undoing, for I soon got back to my old bad habit of dozing off in front of the screen.
这下我可完了，因为不一会儿，我就恢复了以前的坏习惯，在屏幕前打起瞌睡来。