(a) [U]that which is true 真相; 實情; 真實情況; 事實: the whole truth 全部事實 * the search for (the) truth 調查事實真相 * tell the truth, ie speak truthfully, not lie 說實話 * We found out the truth about him. 我們了解到了有關他的事實. * The (plain) truth is, I forgot about it. 老實說, 我忘了. (b) [C] fact, belief, etc that is accepted as true 真理; 原理: one of the fundamental truths of modern science 現代科學的壹項基本原理.
牛津字典查到的，作為真相的時候解釋時，是不可數