be sure of oneself

常見例句

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，對於所有的人，自信都是極其重要的，因爲它是獲得成功必不可少的條件。
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，認爲自己乾什麼事情都能行，衹有認識到通過自己的努力，自己一定能達到目標的。