On the first day of my first grade, I stood by the door with butterflies in my stomach.

上一年级的第一天，我站在门口，心里七上八下。

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"No," she replied, "I just want to tell the story of an angel going to first grade."

“不，”她回答道，“我只是想讲一个天使上一年级的故事。”

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Mr. White teaches first grade in south Georgia.

怀特先生在佐治亚州南部教一年级。

《柯林斯英汉双解大词典》

First-grade teacher Kaitlin Roig heard what sounded like the rapid firing of an assault rifle.

CNN: STORY HIGHLIGHTS

Ignoring bad behavior was the hardest part of applying the techniques, said first-grade teacher Tara Irizarry.

WSJ: Teaching Kids to Give Themselves a Timeout

Now, seven months later, Taylor is beginning to read and does first-grade math.

NPR: Students Blossom in the Desert