Radical sign
[計] 根號
?? 詞語組成解析
radical
['r?d?kl]
adj. 根本的，基本的;激進(jìn)的;徹底的;[植]根生的;
n. 激進(jìn)分子;根基，原子團(tuán);[數(shù)學(xué)]根數(shù);
radic根+al…的 →根本的，基本的;[轉(zhuǎn)為名詞] 根部，基礎(chǔ)
??? 情景例句
And this is my sister Susan and her husband Harry Bennett
這是我妹妹Susan和她丈夫Harry Bennett
The frog is frightened at the sight of a snake.
那只青蛙因為看到了蛇而戰(zhàn)抖。
Glancing at her scornfully, he told her that the dress was sold.
輕蔑地看了她一眼后，便告訴她那件衣服已經(jīng)賣出去了。