... as sure as 千真万确地；和…一样肯定无疑 be sure of oneself v. 自信；有自信心 make sure of 确定；确保；尽力做到 ...
2
?自信
... be sure of 确信，深信 be sure of oneself自信；满怀信心 for sure 毫无疑问地，肯定地，有把握地 ...
3
?有一种力量叫自信
有一种力量叫自信（be sure of oneself）——致俊余 晨曦中的LOVE1楼有一种力量，在你无助的时候，它可以给你最需要的帮助；在你摔倒..
双语例句
1
Self-confidence is to besureofoneself and one's abilities.
自信就是肯定自己以及自己的能力。
2
Self-confidence is to besureofoneself and ones abilities. It is extremely important for all to be self-confident as it is the indispensable condition to their success.
First, you need to besureofoneself, 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.