Root: The form of a word that remains after removal of all affixes;
a morpheme(词素) with lexical meaning that is not further subdivisible(可以再分的张茹雅
) into other morphemes with lexical (词汇的)银行卡收单业务管理办法meaning; the essential, fundamental, or primary part of a word.
新疆农业科学英语词根：词的核心部分，词的意义主要是由它体现出来的。它可以单独构成词，也可以彼此组合成词。（词根和词缀叫构词语素） 下面举出一些主要词根例词:2008年北京奥运会会徽
ag=do,act做，动 agent代理人
agri,agro=agriculture田地，农田 agriculture农业，农艺
ann,enn=year年 annual每年的，年度的
astro,aster=star星 astronomy天文学
audi,audit=hear听 audible听得见的
bell=war战争 rebellion反叛，反抗
bio,bi=life生命，生物 biology生物学 brev=short短 abbreviate缩短，节略
ced,ceed=go行走 precedent先行的，在前
cept=take拿，取 exception例外，除外
circ=ring环，圆 circle圆，圈，环状...
acid, acr = sour, sharp act = to act
agogue = leader al, ol, ul = to nourish
山东省地震
预警管理办法施行日期
alt = high alter, ali = other
am = to love ang = to strangle
angl, angul = angle anim = breath, mind
ann = year anthrop = man
apt = fit aqua = water
arm = weapons art = skill, art
aud = to hear aug = to increase, to make,to grow
avi = bird astro = star, star-shaped
band, bond = to bind bar = bar
bat = to beat bat , bas = to go
bell = war bio = life
brev = short cad, cid, cas = to fall
calc = lime camp = field
cand = white , bright cant, chant, cent = to sing
cap = head cap = to take
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