a- asexual无性别 amoral不道德的，与道德无关的 asymmetric不对称的
ab- abnormal 异常的abduct诱拐(词根duct管道、引导) abuse(ab-，-use)滥用
anti- antislavery反奴隶制度 antithesis(n.) 对立，反对antihuman 反人类
counter-CS (counter-strike), counterterrorist 反恐terrorist counteract 对抗、抵消
de- destruction 拆除decompose 分解
dis- dislike讨厌 disagree不同意 disappear消失 disprove 证明为错，反驳 disable 使无能力或残废
il- illegal 不合法的 illogical不合逻辑的
il- 加强illuminate照耀，照亮 illustrate阐明(词根-luster光泽 区分lust强烈的欲望)
im- impossible imperfect immemorial 太古的，记不住的immoral 不道德的
impersonal非个人的 (区分impersonate扮演模仿)
im-内 import 进口imbibe 吸入immigrate移入 emigration迁出
im-加强-impulse刺激，冲击，冲动 impel 驱使
in- incorrect incapable informal非正式的 incomparable 无敌的，无双的
in-内 inside内部的 inland内陆的 inject注入，注射
in-加强 inspirit激励(sprite小精灵) invigorate使充满活力 inflame使发炎，使激怒，燃烧
ir- irregular不规则的 irresponsible不负责任的 irrational不理智的 irrelative不相关的 irresolute不果断的 irreligious无宗教信仰的
mal- malevolent邪恶的，恶毒的 malcontent不满 malfunction 故障maltreat虐待 malediction
mis- misunderstand误解 misuse误用，滥用 misfortune不幸 mistreat虐待
non- nonentity nonexistent nonstop non-continuous
un- unbelievable不可相信的 unequal不平等的 unfortunate不幸的 unorthodox非正统的(orthodox正统的(重要单词))
-less useless homeless rootless 没有根的ceaseless无休止的
-free bubble-free没有气泡的 talent-free没有天赋的 crime-free无犯罪的 -proof waterproof gas-proof soundproof lightproof
Generally speaking, China, absolutely, the third largest country which fosters 1.3 billion people consisting of 56 different nationalities, is a great and majestic country, but it is after all a developing country, when compared with the US, and is facing more crises than had some western countries done before, attracting the attention of the whole world.