1. 有自信心：be sure and... 一定要... | be sure of oneself 有自信心 | be thick with 充满;与(某人)很亲密

2. 自信：be related to 与......相关(lesson
9) | be sure of oneself 自信(lesson
15) | be surprised at 对......很吃惊(lesson
1)

3. 自信; 满怀信心：be sure of 确信, 深信 | be sure of oneself 自信; 满怀信心 | feel sure of oneself 自信; 满怀信心

4. 有自信：be sure and... 一定要... | be sure of oneself 有自信 | for sure 确实,毫无疑问地