I have taught fifth-grade classes for four years.

我教五年级已经有四年了。

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After having taught fifth-grade classes for four years, I decided to try at all costs to rid them of their fear and dislike of books.

在教了四年五年级的课之后，我决定不惜一切代价消除他们对书籍的恐惧和厌恶。

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I don't become a serious climber until the fifth grade, when I went up to rescue a kite that was stuck in the branches of a tree.

直到五年级我才成为一个真正的攀登者，那时我去救了一只被卡在树枝上的风筝。

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A visitor still remembers the memory aid she learned long ago from her fifth-grade teacher.

VOA: special.2009.12.07

And the question is, so how many pigs does he have, and how many chickens does he have? Wow. What a deep problem, right? But you're going to see why we're going to use this in a second. So you know how to solve this, this is a fifth-grade problem, right?

为了避免歧义，这些猪和鸡都是健全的,现在问题是它到底有多少只猪和鸡呢？,多深刻的一个问题啊，对吗？,但是你将要看到的是,我们为什么要举这个例子,你知道如何解答这个问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

Brooklyn resident Jinnie Spiegler says her fifth-grade daughter has been spending hours of class time on practice tests.

WSJ: Some NY parents to boycott new, harder state tests

I'm not a doctor or a scientist, but all it takes is a fifth-grade education to dispute this bias.

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"You have to teach with your heart sometimes, " said fifth-grade teacher Valerie Krum.

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