🧩 词语组成解析
aldehyde
['ældihaid]
n. 醛，乙醛;
radical
['rædɪkl]
adj. 根本的，基本的;激进的;彻底的;[植]根生的;
n. 激进分子;根基，原子团;[数学]根数;
radic根+al…的 →根本的，基本的;[转为名词] 根部，基础
🗣️ 情景例句
and a new paint job in the schoolrooms.
和重新油漆教室。
Well, I'm sorry you have to leave so early.
哦，很遗憾，你非得这么早走不可。
It was no use pretending that I had not seen him, so I waved to him.
若再装作没看见他已是没有用了，我只好向他招手。