be sure of oneself

常见例句

Self-confidence is to be sure of oneself and one's abilities.
自信就是肯定自己以及自己的能力。
Self-confidence is to be sure of oneself and ones abilities. It is extremely important for all to be self-confident as it is the indispensable condition to their success.
自信自信就是要相信自己和自己的能力，对于所有的人，自信都是极其重要的，因为它是获得成功必不可少的条件。
First, you need to be sure of oneself , think that what thing self does being able to make it, only when the cognition arrives at the effort passing self, self definitely can achieve self's aim.
首先，你要有自信心，认为自己干什么事情都能行，只有认识到通过自己的努力，自己一定能达到目标的。