何时何处
他一定会来 He is sure to come. 那一定不是刘老师 That person can't be Teacher Liu. 一定要掌握英语 You must command English. 你一定喜欢她 You must have fallen in love with her. You must like her.这种表达方法容易引起歧义。可以理解成父母包办婚姻时逼婚的说法，也可以理解成推测的说法。 你一定没吃过这道菜。You couldn't have tasted this dish.有的时候还可以在后面加上点东西，变成You couldn't have tasted this dish，I bet. 昨天你一定没去学校 You definitely didn't go to school yesterday. 或 You couldn't have gone to school yesterday. 他一定还没来,别着急 Take it easy. He can't have been there. 英语里面确实还有一些词表示很肯定的意思，如bet，absolutely，definitely，exactly等
小快手337
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. 一定: 1. necessarily2. particular3. surely4. certainly5. fixed6. a certain (extent, etc.)7. given例句与用法: 1. 他一定会来的。 He will certainly come. 2. 她一定会通过考试。 She is sure to pass the examination. 3. 我父母发现窗子被打破后，一定会有一番斥责。 There is sure to be a fuss when my parents find the window is broken. 4. 你在今晚的晚会上一定会玩得很开心。 You'll sure to have fun at the party tonight. 肯定: 1. sure2. to be sure3. to be certain4. certain5. definite6. to confirm7. to affirm8. affirmative例句与用法: 1. 我不能肯定。 I don't know for sure. 2. 那是肯定的。 That's for sure. 3. 我认为他侵占我的停车位肯定是有意和我作对。 I'm sure he took my parking space just to spite me. 4. 你肯定你九点能来吗？ Are you sure you can come by at nine?
quanyanhei
形容词 certainfixedgivenparticular 副词 certainlynecessarilyfor suresurely 其实用must也是可以的 你说的“你一定喜欢他”这句其实很多老外就是这么说的 这样用其实是很地道的 学英语要灵活运用～！
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