求翻译：这是我第一次做演讲，而且还是在这么多人的面前，顿时脸就红了，脑子一片空白，不知道应该讲什么，所有人的目光都聚集在我身上，又担心会出错，使得全班大笑是什么意思？

This is my first time doing presentations, but also in front of so many people, suddenly blushed, my mind blank, do not know what should be said, all eyes are on me, they worry about mistakes, making the whole class laugh

This is the first time that I have done, but it is also a lecture in front of so many people, it suddenly face a blank red in the brain, and do not know whether I should say, all eyes were on me, and it is also worried that brings together an error will make the whole class laugh.

This is I first time makes the lecture, moreover in the such many person's front, the face has been immediately red, a brain piece of blank, did not know should speak any, all person's vision all gathers on my body, also worried can make a mistake, causes the entire class to laugh

This is my first time giving talks, but also in front of so many people, suddenly face red, his mind drew a blank, not knowing what, all eyes are gathered in my body, and fear that is an error, making the whole class laugh

This is my first time giving talks, but also in front of so many people, suddenly face red, his mind drew a blank, not knowing what, all eyes are gathered in my body, and fear that is an error, making the whole class laugh