(1) 1)事实，实情(true or actual state of matter)[U]：the whole～about sb's health/of the universe 关于某人身体状况/宇宙的整个情况;search for/find out/speak the～调查事实真相/查明事实真相/说实话;find out the～about sb 查出某人的实情;to tell the～说真的，老实说;〖同〗fact，reality，accuracy;〖反〗falsehood，falseness，untruth;2)真理(statement proven to be or accepted as true)[C]：an unquestioned～公认的真理;mathematical/scientific～s 精确/科学的真理;the fundamental～s of modern science 现代科学的基本原理;the～s of science 科学的真理; 3)真实情况(true fact)[C]：tell sb several～s about oneself 告诉别人有关自己的一些真实情况;〖同〗fact，reality;〖反〗fiction，error;

(2)真实性，确实(trueness;state of being true)[U]：the distortion/test of the～对真实性的歪曲/检验;doubt/dispute the～of sb's information (statement) 怀疑/质疑某人情报(陈述)的真实性;There was no～in his speech. 他说的没有一句实话。〖同〗fact，truthfulness，trueness;〖反〗untruth，untruthfulness，falseness;

in truth 实际上(fml)：The Civil War was in～over. 实际上，内战已经结束了。

→′truthful adj(指人)诚实的;(指陈述)真实的;′truthfully adv 真诚地;真实地;′truthfulness n 诚实，实话