My favorite memory is from when we were in the ninth grade, and we were in the same Social Studies class.

我最深刻的记忆是我们九年级的时候，那时我们在同一个社会研究班级。

youdao

Although I never took a math class in college, I always thought I was good at it until I had to give up helping Chelsea with her homework when she was in ninth grade.

尽管上大学时我从没选修过数学，但我总认为自己数学不错，但在切尔西九年级时，有一次因帮不了她做家庭作业才发现事实并非如此。

youdao

His ninth-grade English class for boys centers on books that he believes boys find interesting.

他的9年级课程围绕一些他认为男生能从中找到兴趣的书籍。

youdao

His ninth-grade English class for boys centers on books that he believes boys find interesting.

VOA: special.2010.12.02

This year, 90 students were accepted for admission to Boston Latin's ninth-grade class (14-15-year-olds).

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And when her ninth-grade class visited Washington, Gore arranged a tour of the White House and posed for a group photo.

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Albert is doing ninth-grade work at age 12 and just signed up for his first -- free -- online class on Java programming with CodeWarriorU.com.

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