certain的名词是什么
名词形式是 certainty 英 [ ˈsɜːt(ə)nti ] 美 [ ˈsɜːrtnti ] 确实,确定性常用释义 释义 n. 确实,确定性;确实的事,必然的事 变形 复数certainties 例句 1. A general election became a certainty last week. 普选上周已成必然。 2. Such attitudes are valueless unless they reflect inner cognition and certainty....