Acid radical
[化] 酸根; 酸基; 酰基\\n[医] 酸根
🧩 词语组成解析
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
Sorry, but he is out at the moment.
抱歉，他现在出去了？
I want to get cigarettes.
我要买香烟。
but fearing that she would never see Rastus again -- the letter had made that quite clear -- she changed her mind.
但又害怕再也见不到拉斯特斯——这点，信上说得十分明白——于是便改变了主意。