prefixes（词语的前缀）
english is a very flexible language and you can build on your vocabulary to make new words. one way of doing this is to add prefixes (such as dis-, pre- or co-) before the word.
here's a list of common prefixes with their meanings and some examples.
prefixexplanationexampleanti against反对anticlockwise, anti-sunburnautoself自己的antobiography, automobilecowith共同、一起cooperate, coordinatecontraagainst反，防止contradict, contravenederemove除去，脱离deregulate, deselectdisnot中断、消除disappear, disconnectilnot否定，相反illegal, illogicalinterbetween相互，在……之间international, interchangemisbadly / wrongly错，误misinform, misbahave, misunderstandmultimany许多multinational, multilingualnonopposite不，非，无non-profit, non-finiteoutmore than超过outperform, outdoovertoo much过多，过剩oversleep, overworkpostafter在……之后postpone, postnatalprebefore在……之前predict, precookreagain再，重rewrite, relivesubunder在……的下面submarine, subliminalsuperhigher / improved超，过于supermarket, superhumantransacross横越，变化transatlantic, transplantunione单一uniform, unilateralundernot enough过少，不足underpaid, underfed