1、Waiting to do something until you can be sure of doing it exactly right means waiting forever.───等待有把握时再去做一件事往往意味着永远的等待
2、But the idea is that no matter what else I do today, these are the things I want to be sure of doing.───只是你今天还要做其他什么，这是我肯定要做的的事。
3、be sure of doing sth.───对做某事有信心
4、But the idea is that no matter what else I do today, these are the things I want to be sure of doing.───但重要的是无论今天我还做些什么事，这三件是我保证要做的。
5、If they marry, they will be sure of doing well, and if they do not, they may all live very comfortably together on the interest of ten thousand pounds.───要是出了嫁，日子肯定富得很。即使不出嫁，就靠那一万镑得来的利息，也能在一起生活得舒舒服服的。
6、So I had the idea of doing a book on something and not really sure what it would be.───所以我当时也有了做一本电子书的想法，但还没有想清楚做哪方面。
be sure of doing（意思翻译）
一定要做到
be sure of doing（相似词语短语）
1、to be sure───无可否认，诚然；诚然；的确；哎呀（表惊奇）
2、be doing───做；现在进行时；表达当时的行动（状态）
3、Be sure of───确信；对…有把握
4、be sure of sth───确信某事
5、be sure that───肯定…；一定要做到；使有把握；注意，一定要做到，使有把握
6、of sure───当然
7、sure of───确信…的
8、be not sure───不确定；吃不准
9、be sure───[法]确信; 诚然; 有谱儿；肯定；确信
be sure of doing（双语使用场景）
1、Waiting to do something until you can be sure of doing it exactly right means waiting forever.───等待有把握时再去做一件事往往意味着永远的等待
2、But the idea is that no matter what else I do today, these are the things I want to be sure of doing.───只是你今天还要做其他什么，这是我肯定要做的的事。
3、be sure of doing sth.───对做某事有信心
4、But the idea is that no matter what else I do today, these are the things I want to be sure of doing.───但重要的是无论今天我还做些什么事，这三件是我保证要做的。
5、If they marry, they will be sure of doing well, and if they do not, they may all live very comfortably together on the interest of ten thousand pounds.───要是出了嫁，日子肯定富得很。即使不出嫁，就靠那一万镑得来的利息，也能在一起生活得舒舒服服的。
6、So I had the idea of doing a book on something and not really sure what it would be.───所以我当时也有了做一本电子书的想法，但还没有想清楚做哪方面。