After age five, children go to kindergarten. Elementary school or grade school follows kindergarten and goes from first grade to fifth or sixth grade.

五岁后，孩子就上幼儿园。接着就上小学。小学是从一年级到五年级或者六年级。

youdao

Fourth grade in elementary school, I participated in a national essay contest for primary and secondary school students.

上小学四年级时，我参加了全国小学生作文竞赛。

youdao

Multiple assessments were used to investigate ADHD students of elementary school (1-5 grade). Findings show that the ratio of ADHD in elementary school is about 3.1%.

本研究用运多重评估法（访谈、量表和行为观察相结合） ，对某小学1-5年级学生进行了有关注意力缺损多动障碍（ADHD）的筛查研究。

youdao

Well, it's a long time ago but it was elementary school, you know, maybe 3rd grade, 4th grade,

那是很久以前的事情了，应该是小学时候吧，那大概是三年级或者四年级，

美国的博物馆教育 - SpeakingMax英语口语达人

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