单词	iff
释义	iff 1 of 2 conjunction ˈif-ᵊn(d)-ˈōn-lē-ˌif  ˈif, sometimes read with a prolonged f  : if and only if two figures are congruent iff one can be placed over the other so that they coincide —used in logic and mathematics IFF 2 of 2 abbreviation identification, friend or foe Word History Etymology Conjunction alteration of if entry 1 First Known Use Conjunction 1955, in the meaning defined above
随便看	carbonate of lime carbonate of potash carbonate of soda carbonate-apatite carbonated carbonated water carbonated wine carbonates carbonating carbonation carbonations carbonatite carbonatization carbonator carbonators carboned carboner carbonest carboni- carbonic carbonic acid carbonic acid gas carbonic an carbonic anhydrase carbonic anhydride

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。