adj. 1.基本的，根本的；固有的，本来的；重要的，主要?的；最初的；彻底的。 2.〔常 R-〕激进的，急进的，过激的，极端的。 3.【植物；植物学】根生的；【化学】基的，原子团的；【语言学】根词的；语根的；【数学】根的；【音乐】根音的。 n. 1.激进分子，激进主义者；〔R-〕 激进党派成员。 2.【语言学】词根；词干，(中国字的)偏旁，部首；【化学】根，基，原子团；【数学】根数；根号；【音乐】根音。 短语和例子 a radical principle 基本原理。 radical defects 生来的缺点。 a radical treatment 彻底疗法，根治法。 radical measures 激烈手段。 a R- party 激进派。 radical growths [ hairs, leaves ] 根生物[根生毛，根生叶]。 -ism 激进主义。 -ization n. 激进。 vt. -ize ,vi. 使激进，变激进，相信激进主义，成为激进主义者。 adv. -ly
especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem; "basal placentation"; "radical leaves" 同义词：basal,
of or relating to or constituting a linguistic root; "a radical verb form"
(used of opinions and actions) far beyond the norm; "extremist political views"; "radical opinions on education"; "an ultra conservative" 同义词：extremist, ultra,
markedly new or introducing radical change; "a revolutionary discovery"; "radical political views" 同义词：revolutionary,
arising from or going to the root or source; "a radical flaw in the plan"
(linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem" 同义词：root, root word, base, stem, theme,
a character conveying the lexical meaning of a logogram
a person who has radical ideas or opinions
(mathematics) a quantity expressed as the root of another quantity
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule 同义词：group, chemical group,
an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; "in the body free radicals are high-energy particles that ricochet wildly and damage cells" 同义词：free radical,
例句与用法
1.
They wish to adopt more radical methods . 他们希望采取更激烈的方法。
2.
All this is fiery radical writing . 所有这些都走火辣辣的过激之作。
3.
They arise because of the removal of radicals . 他们起源于脱根号。
4.
He made a radical change in the plan . 他在这计划中做了一个彻底的更改。
5.
Both were new and radical experiments . 两者都是又新又猛的试验。
6.
There is no radical cure for cancer . 现在还没有根治癌症的办法。
7.
In some cases free radicals can be detected . 在某些情况下可以测出自由基来。
8.
Hundreds of radical students flocked to sian . 数以百计的进步学生纷纷来到西安。
9.
Lambert did not reach the more radical conclusion . Lambert还没有达到更本质的结论。
10.
I do not belong to the school of thought that favors radical change . 我不属于激进派。
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