你要干吗说清楚呀! 是要一句一句翻译还是什么?你告诉我,我才能帮你翻译呀!
我先帮你把你的三句话翻译出来：
1. I am a new grade 7 student, and there are 40 students in my class.
2. I have many good friends in my class, Annie has short hair and she speaks good English; Kate has slim figure and she is a member of school dancing club; Jack is a tall and strong boy who is good at tennis.
3. I like being with my new classmates, they make me feeling very good.