extract the root

... cut at the roots of 完全推翻 extract the root 【数】开方 pull up one's roots [喻]离开原居地[原单位]; 另谋生活 ...

翻译词典... ... extract examples from a book 从书中摘录例子. extract the root 求根；开方. extract of beef 牛肉汁. ...