英语翻译My class will put on a short play in English at the end

My class will put on a short play in English at the end of the year 。Yesterday our English teacher gave us copies of the play。
年底时,我们班要演一个英文短剧。昨天,英语老师把这个短剧剧本给了我们。
“Choose a character in the play whom you’d like to be ,” she told us 。“This evening learn a few lines of this part for homeworks。Then tomorrow you can say those lines in front of the class。I’ll decide who’ll play each part。”
“选一个你们自己想演的角色吧”她对我们说,“今天的家庭作业就是晚上背一些这个部分的台词,明天在班上展示。然后我再决定由谁演出某个角色”。
I wanted to have one of the bigger parts in the play ,so I chose the part of the king。He has a lot of lines to say。I learned most of them by heart。
我想做这个短剧的主角,所以我选了国王这个角色。他有特别多的台词。大部分的台词我都背了。
This morning in our English lesson we had to say our lines。I acted the part of the king。When I said my lines,I put a lot of expression into my acting 。I thought I acted really well。
今天上午的英语课我们背了台词。我扮演国王。演出时,我表现得绘声绘色。我满以为我是表现得很到位的。
Everyone in the class read a part and then the teacher decided who would play each part。
在每个人都读了一段台词以后,老师做出了决定。
Many of the students in my class couldn’t act at all 。They couldn’t even read without making lots of mistakes 。I was sure that I would get a big part in the play。
我的很多同学完全不会表演。就是照着念,他们也会出很多错。我很有信心担任国王。
However,the teacher gave me the part of a soldier。He has only one line。It is ,“Yes,sir!”
令人意外的是,老师让我演一个士兵。并且他只有一句话：“遵命!”
I was very disappointed。At the end of the lesson I went up to her and asked her why I had such a small part。
我很失落。快下课时,我忍不住走上前去问老师,为什么该我演那个士兵。
“You put too much expression in your acting,” she said。“Good acting is not big acting。It is acting the audience can believe in 。”
“你刚刚的展示,你融入了过多的感情。太过了。好的演出不是夸张的,而是让观众可以信服的表演。”
I think I know what she means。
我想我明白了她的意思。