What grade and class are you in?

你在哪个年级，哪个班？

youdao

—What class are you in? —I'm in Class 3.

——你在哪个班？ ——我在三班。

youdao

Discovering the entire inheritance tree structure from an existing system is particularly useful, because it helps you uncover what the top-level class is and what subclasses are in the tree.

从一个已存在系统中发现整个的继承树结构是相当有用的，因为它能向您揭露在树中什么是顶级类以及什么是子类。

youdao

If you change the animal's environment and you give it access to these sort of foods, and these are the pictures that I showed in the first class, and you remember I asked you what constituents of this diet promoted obesity and you said it was fat, sugar, and variety that was correct.

如果你改变动物所在环境,再给它们这些食物,这些图片我们在第一课见到过,我问过这些食物中哪些成分使人发胖,你们说脂肪,糖和其他成分,没错

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

What you claim Obama has accomplished and what is happening here in the real world (middle class America) are very different.

FORBES: Five Reasons to Re-elect President Obama