初小的英语怎么说

初小的英文：
primary grades

• primary feather
  初级飞羽
• A primary feather of a bird.
  翅前羽鸟的初级飞羽
• The Democratic primary was held this month.
  民主党候选人初选于本月举行。
• These are created by combining the primary.
  这些颜色通过混合原色形成。
• This should be your primary concern!
  这一点是首先需要留心的。

• longitudinal grade
  纵坡度
• There are lots of jobs in junior grades.
  初级阶段有很多工作要做。
• Red grades into pink.
  红色逐渐变成粉红色。
• The teachers are grading the papers.
  老师们正在给卷子打分数。
• Pencils are graded according to softness.
  铅笔根据硬度分类。