为什么有的单词前面加un表示反意 有的加dis 表示反意 un-前缀与dis-前缀有什么区别
\u600e\u4e48\u5224\u65ad\u5426\u5b9a\u524d\u7f00\u662f\u52a0un\u8fd8\u662fdis\uff1fdis-\x0d\x0a\u52a0\u5728\u540d\u8bcd\u3001\u5f62\u5bb9\u8bcd\uff0c\u52a8\u8bcd\u4e4b\u524d\uff0c\u4e3b\u8981\u8868\u793a\u76f8\u53cd\u3001\u76f8\u5bf9\u7684\u610f\u601d\uff0copposite of\x0d\x0a 1. \u52a0\u540d\u8bcd\u6216\u5f62\u5bb9\u8bcd\u524d\uff0c\u8868\u793a"\u76f8\u53cd","\u5426\u5b9a" \uff0c\u5982 disadvantage, disability dishonorable\x0d\x0a \u8fd9\u91cc\u662f\u8868\u793a\u548c\u539f\u8bcd\u5f7b\u5e95\u76f8\u53cd\u7684\u610f\u601d\uff0c\u5982disadvantage \u52a3\u52bf\uff0cadvantage \u4f18\u52bf\uff0cdishonorable \u53ef\u803b\u7684\uff0chonorable \u5149\u8363\u7684\x0d\x0a 2. \u52a8\u8bcd\u524d\u8868\u793a"\u5206\u79bb","\u593a\u53bb"\uff0c\u5982 disarm\u89e3\u9664\u6b66\u88c5, disconnect\u65ad\u5f00\x0d\x0a\x0d\x0ain- \uff08\u6216im-\uff0c\u7528\u5728b,m,p\u524d\uff0cir\u5728r\u6253\u5934\u7684\u8bcd\u524d\uff0cil\u5728l\u6253\u5934\u7684\u8bcd\u524d\uff09\x0d\x0a\u52a0\u5728\u5f62\u5bb9\u8bcd\u3001\u6216\u5f62\u5bb9\u8bcd\u53d8\u5316\u7684\u540d\u8bcd\u4e4b\u524d\uff0c\u624d\u6709\u5426\u5b9a\u7684\u610f\u4e49,\u4e3b\u8981\u8868\u793a\u4e0d\u662f\u3001\u6ca1\u6709\u7684\u610f\u601d\uff0cnot\x0d\x0a 1. \u5f62\u5bb9\u8bcd\u524d\u6216\u5f62\u5bb9\u8bcd\u53d8\u5316\u7684\u540d\u8bcd\u4e4b\u524d\uff0c\u8868\u793a"\u4e0d","\u65e0","\u975e"\uff0c\u5982incredible, impossible, inaccurate\uff0cinflexible, impolite\x0d\x0a (\u8fd9\u4e2a\u5c31\u548cdis\u4e0d\u4e00\u6837\u4e86\uff0c\u4e0d\u8868\u793a\u76f8\u53cd\u7684\u610f\u601d\uff0c\u4ec5\u8bf4\u660e\u975e\u539f\u8bcd\u7684\u610f\u601d\uff0c\u4f8b\u5982inaccurate \u4e0d\u51c6\u786e\uff0c\u5e76\u4e0d\u662f\u5b8c\u5168\u9519\u8befwrong\uff0cimpossible\u4e0d\u53ef\u80fd\uff0c\u4f46\u4e0d\u662f\u5411\u53e6\u4e00\u4e2a\u53cd\u65b9\u5411,inflexible \u4e0d\u7075\u6d3b\uff0c\u4f46\u4e0d\u662f\u56fa\u6267stubborn, impolite \u4e0d\u793c\u8c8c\u4f46\u4e0d\u662f\u91ce\u86eerude)\x0d\x0a 2. \u5728\u52a8\u8bcd\u524d\u8868\u793a"\u4f7f\u6210\u4e3a...","\u4f7f\u5904\u4e8e...\u7684\u5883\u5730"\uff0c\u5982install, inject\x0d\x0a 3. \u7528\u5728\u8868\u793a\u4e8b\u52a1\u7684\u540d\u8bcd\u524d\u8868\u793a"\u5411...\u5185","\u5728...\u4e0a","\u5411..." \uff0c\u5982inland, import\x0d\x0a\x0d\x0aun- \x0d\x0a\u5b83\u96c6\u5408\u4e86dis\u548cin\u7684\u7528\u6cd5\uff0c \u52a0\u5728\u52a8\u8bcd\u524d\u8868\u793a\u76f8\u53cd\u3001\u76f8\u5bf9\u7684\u610f\u601d\uff0copposite of \uff08\u8fd9\u4e2a\u50cfdis\u7684\u7528\u6cd5\uff09\uff0c\u540d\u8bcd\u524d\u8868\u793a\u201c\u6ca1\u6709\u201d indicate absence of\uff0c\u5f62\u5bb9\u8bcd\u3001\u526f\u8bcd\u524d\u8868\u793a\u201c\u4e0d\u201d not\u3002\x0d\x0a 1\uff0e\u52a0\u5728\u52a8\u8bcd\u524d\u8868\u793a\u76f8\u53cd\u7684\u52a8\u4f5c\uff0c\u5982 unlock \u5f00\u9501\uff0cuncover \u63ed\u5f00\uff0cundress \u8131\u53bb \uff08\u8fd9\u4e2a\u6709\u70b9\u50cfdis\u7684\u8868\u793a\u65b9\u6cd5\uff09\x0d\x0a\u52a0\u5728\u52a8\u8bcd\u6f14\u7ece\u7684\u5f62\u5bb9\u8bcd\u524d\u52a0\u5728\u540d\u8bcd\u524d\u8868\u793a\u52a8\u4f5c\u672a\u5b8c\u6210\uff0c\u5982unfinished, unconcerned, unattended\x0d\x0a2\uff0e\u52a0\u5728\u540d\u8bcd\u524d\u8868\u793a \u201c\u65e0\u201d\u201c\u6ca1\u6709\u201d\u540e\u9762\u8ddf\u7684\u90a3\u4e2a\u540d\u8bcd\u7684\u610f\u601d\uff0c\u5982uncertainty \u4e0d\uff08\u6ca1\u6709\uff09\u786e\u5b9a\uff0cunwillingness \u4e0d\uff08\u6ca1\uff09\u60c5\u613f\uff1b\x0d\x0a\u6709\u65f6\u52a0\u5728\u540d\u8bcd\u524d\u8fd8\u4f1a\u53d8\u6210\u52a8\u8bcd\u6765\u7528\uff0c\u5982unearth \u6ca1\u6709\u571f\u4e86\u5c31\u65f6\u201c\u6316\u6398\u201d\uff0cunnerve \u6ca1\u6709\u52c7\u6c14\u4e86\u5c31\u65f6\u201c\u4e27\u5931\u52c7\u6c14\u201d\x0d\x0a3\uff0e\u52a0\u5728\u666e\u901a\u5f62\u5bb9\u8bcd\u524d\uff0c\u8868\u793a"\u4e0d"\uff0c uncivil \u4e0d\u6587\u660e, uncommon\u4e0d\u5bfb\u5e38\uff0cunreal\u4e0d\u771f\u5b9e \x0d\x0a\x0d\x0a\u5e0c\u671b\u5927\u5bb6\u8fd8\u6ca1\u6655 \uff0c\u5176\u5b9e\u5f88\u7b80\u5355\uff1a \x0d\x0adis-, \u76f8\u53cd\u7684\x0d\x0ain-, \u4e0d\u662f\u3001\u975e\x0d\x0aun-, \u5927\u90e8\u5206\u90fd\u662f\u76f8\u53cd\u7684\uff0c\u5076\u5c14\u8868\u793a\u4e0d\u662f
1\uff0edis\uff0d\u52a0\u5728\u540d\u8bcd\u3001\u5f62\u5bb9\u8bcd\uff0c\u52a8\u8bcd\u4e4b\u524d\u3002 \r\n\r\n\u3010\u4f8b\u3011disadvantage\uff08\u7f3a\u70b9\uff09dishonorable\uff08\u4e0d\u5149\u5f69\u7684\uff09disagree\uff08\u4e0d\u540c\u610f\uff09 \r\n\r\n2\uff0eun-\u52a0\u5728\u540d\u8bcd\uff0c\u5f62\u5bb9\u8bcd\uff0c\u526f\u8bcd\u4e4b\u524d \r\n\r\n\u3010\u4f8b\u3011unfinished\uff08\u672a\u5b8c\u6210\u7684\uff09undoubted\uff08\u65e0\u7591\u7684\uff09unemployment\uff08\u5931\u4e1a\uff09 \r\n\r\n\u3010\u9644\u3011\u524d\u7f00\u7684\u4ecb\u7ecd\r\n\r\n\u524d\u7f00\uff0c\u5373\u5728\u8bcd\u6839\u524d\u52a0\u4e0a\u7279\u6709\u7684\u4e00\u4e2a\u7f00\u6587\u4f7f\u4e4b\u6210\u4e3a\u53e6\u4e00\u4e2a\u65b0\u7684\u8bcd\u6c47\u5e76\u5177\u6709\u65b0\u7684\u542b\u4e49\u3002\r\n\r\n\u3010\u9644\u3011un-\u524d\u7f00\u4e0edis-\u524d\u7f00\u7684\u4ecb\u7ecd\r\n\r\n\u524d\u7f00dis-\u6765\u81ea\u62c9\u4e01\u8bed\uff0c\u539f\u4e49\u4e3aapart"\u5206\u5f00"\u3002dis-\u5177\u6709"\u4e0d"\u3001"\u65e0"\u7684\u610f\u601d\uff0c\u6240\u4ee5\u52a0\u5728\u67d0\u4e9b\u52a8\u8bcd\u6216\u540d\u8bcd\u524d\u6784\u6210\u53cd\u4e49\u8bcd\u3002\r\n\r\n\u524d\u7f00un- \u53ef\u505a\u540d\u8bcd\u3001\u5f62\u5bb9\u8bcd\u53ca\u526f\u8bcd\u7684\u524d\u7f00,\u8868\u793a\u5426\u5b9a\u548c\u76f8\u53cd\u7684\u610f\u4e49\u3002\u524d\u7f00 un \u6c38\u8fdc\u91cd\u8bfb\u3002
dis-加在名词、形容词，动词之前，主要表示相反、相对的意思，opposite of
1. 加名词或形容词前，表示"相反","否定" ，如 disadvantage, disability dishonorable
这里是表示和原词彻底相反的意思，如disadvantage 劣势，advantage 优势，dishonorable 可耻的，honorable 光荣的
2. 动词前表示"分离","夺去"，如 disarm解除武装, disconnect断开
un-
它集合了dis和in的用法， 加在动词前表示相反、相对的意思，opposite of （这个像dis的用法），名词前表示“没有” indicate absence of，形容词、副词前表示“不” not。
1．加在动词前表示相反的动作，如 unlock 开锁，uncover 揭开，undress 脱去 （这个有点像dis的表示方法）
加在动词演绎的形容词前加在名词前表示动作未完成，如unfinished, unconcerned, unattended
2．加在名词前表示 “无”“没有”后面跟的那个名词的意思，如uncertainty 不（没有）确定，unwillingness 不（没）情愿；
有时加在名词前还会变成动词来用，如unearth 没有土了就时“挖掘”，unnerve 没有勇气了就时“丧失勇气”
3．加在普通形容词前，表示"不"， uncivil 不文明, uncommon不寻常，unreal不真实
英语里表示反义的前缀除了un和dis外还有很多，如in-，im- il- ir- un- mis- non- dis- de- anti- ，counter-等。略举几例，countermeasure对策；对抗手段；反措施；impossible不可能的；irregular不规则的； mismatch失配等，这里就不一一列举了。
并没有明确的指示什么字眼该用哪个prefix，而且不知是un， dis,还用别的：
un- unavoidable
mis-misunderstand
dis-discourage
im-impossible
而且有些字是可以拥有不同的prefix，可是意思却不一样哦：
如： disorganized 以及 unorganized
Disorganized：用来形容杂乱无章的人／行为
Unorganized：事物
例句：
She never gets anywhere on time. She's hopelessly disorganized.
I shaked out my unorganized CD collection by artist and genre.
happy加un就是不高兴
happy加un就是不高兴
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