Active radicals
[机] 活性根
🧩 词语组成解析
active
['æktiv]
adj. 积极的，活跃的，有生气的;迅速的，敏捷的;有效的，起作用的;
n. [语法]主动语态;积极分子，活跃的人;
n. 激进分子( radical的复数形式 ); 根基; 基本原理; [数学]根数
🗣️ 情景例句
She's right.
她说得没错。
They have been much too irresponsible for their high position.
他们虽身居要位，未免太缺乏责任感了。
'I've just arrived by train,' she said.'I'm coming to see you.
“我刚下火车，”她说，“我这就来看你。