求翻译：校长就我们学校上个学期的教学改革做了一些评论。在电脑前坐了三个多小时后，我站起身来伸展一下身体。越战期间，很多美国年轻人逃离祖国来逃兵役。据我所知，上海目前将近有1600万人口。是什么意思？

The principal made some comments on our school last semester teaching reform. Sit in front of the computer more than three hours later, I stood up to stretch your body. During the Vietnam War, many young Americans to flee the country to escape military service. As far as I know, Shanghai is now near

Our school principals for a semester on the reform of teaching has made some comments. Sitting in the front of the computer more than 3 hours later, I stood up to stretch the body. During the Vietnam War, many American young people flee the country to escape military service. As far as I know, at pr

Principal the semester educational reform has made some commentaries on our school on.Has sat for more than three hours after the computer, I stand up extend the body.Vietnam War period, the very many American young people flee the motherland to run away the military service.As far as I know, Shangh

Last semester of teaching reform in our school principal made a number of comments. Sitting at a computer for more than three hours later, I stand up and stretch the body. During the Vietnam war, many United States young man fled his native deserters bondage. As far as I know, Shanghai there are nea

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