我一定要相信自己的理想，并且努力克服困难去实现它。一定，这个词经常会说到。那你知道一定用英语怎么说吗?下面无锡美联小编告诉你一定用英语怎么说，大家一起来看看吧!
一定用英语怎么说：
must;definite; fixed; established; constant;
有关一定用英语怎么说的例句1：
学习、工作都有一定的时间。
There are fixed times for study and for work.
一定是弄错了。
There must be some mistake
我一定要回来。
I must be getting back
我一定要去看这部电影。
I must go and see this film
我一定让人觉得很无聊。
I must have been a bore.
昨晚我的情况一定很糟糕。
I must have been in a shocking state last night.
他一定很久以前就开始写这本书了。
He must have started writing his book a long time ago.
你现在一定非常担心。
You must be very worried by now
有关一定用英语怎么说的例句2：
1. At 29 Russell must be one of the youngest ever Wembley referees 29岁的拉赛尔一定是有史以来温布利球场上的裁判员中年轻的一个。
2. I must be getting back 我一定要回来。
3. You must see a doctor, Frederick 弗雷德里克，你一定得去看医生。
4. It must be noted, however, that not all British and American officers carried outorders 然而，一定要注意不是所有的英国和美国军官都执行了命令。
5. 'Go! Please go.' — 'You must be joking!' “走吧!请走吧。”——“你一定是在开玩笑吧!”
6. If you must be in the sunlight, use the strongest filter cream you can get 如果一定要呆在太阳底下的话，就擦上你能买到的防晒系数高的防晒霜。
7. We must not forget your birthday. 我们一定不能忘了你的生日。
8. I must have been a bore. 我一定让人觉得很无聊。
9. I'm sure he must feel he has lost a close family friend, because I know I do 我敢说他一定觉得自己失去了一位亲密的世交，因为我知道我是这种感觉。
10. In order to start reading this book you must have had some idea that the physicalsymptoms you were experiencing were due to anxiety. 开始读这本书之前，你一定已经了解到：你身体的不适症状是源于焦虑。
11. I must telephone my parents 我一定要给父母打电话。
