求翻译：首先，你应该培养你的勇气，积极在公共场合发言，这对你有很大的帮助，并且能增强你的自信心。其次，你应该提前为演讲做好充足的准备，正所谓：“有备无患”。是什么意思？

First, you should develop your courage, active in public speaking, this is very helpful for you, and can enhance your self-confidence. Second, you should advance to make adequate preparations speech, is called: "prepared."

First of all, you should cultivate your courage, and actively in public occasions spoken in this for you and there are a lot of help, and will boost your self-confidence. Secondly, you should do a good job in which the speech ahead adequate preparation, as the saying goes, "Be prepared for all".

First, you should raise your courage, positively in the public situation speech, this has the very big help to you, and can strengthen your self-confidence.Next, you should ahead of time prepare for sufficient for the lecture, just so-called: “Forewarned iss forearmed”.

First of all, you should develop your courage, actively speak in public, it has a lot of help to you, and can strengthen your self-confidence. Second, you should have adequate preparation in advance for speech, saying: "no harm".