确定: 1. definite2. certain3. fixed4. to fix5. to determine6. be sure例句与用法: 1. 我确定他是被谋杀的。 I ascertain that he was murdered. 2. 他四处张望,要确定周围没人。 He looked around to confirm that he was alone. 3. 为了确定他在家,我事先打电话给他。 To make sure that he was at home, I called him up in advance. 4. 一种表示确定的概念或观念的语言元素,例如字树。 An element of language that expresses a definite image or idea, for example, the word tree. 5. 我们开会的时间已经确定了. The time for our meeting has been fixed already.