柯林斯詞典top secret 1. ADJ Top secret information or activity is intended to be kept completely secret, for example, in order to prevent a country's enemies from finding out about it. 絕密的 The top secret documents had to do with the most advanced military equipment. 這些絕密文件涉及最先進的軍事裝備。 返回 top secret劍橋詞典(of information ) extremely secret and not to be told to anyone outside a particular group of people （情報）絕密的 These papers are top secret . 這些文件是絕密的。 [ 衹用在名詞前麪的形容詞 ] a top-secret military research project 絕密的軍事研究項目 返回 top secret