随便找个小学生都会告诉你，彗星是由冰组成的。
小学口语交际教学是语文课程教学的重要组成部分。
Communicative language teaching in primary schools is an important component of teaching.
体育是小学教育的重要组成部分，又是一门必修课程。
Physical education is an important part of primary education as well as a compulsory course.
英语词汇是小学英语教学中一个极其重要的组成部分。
English vocabulary is an important component in English language teaching and learning for primary schools.
性道德教育是小学德育的重要组成部分。
The education of gender morality is an important part of moral education in primary school.
性道德教育是小学德育的重要组成部分。
The education of gender morality is an important part of moral education in primary school.
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