primer

美 [ˈpraɪmər]
英 [ˈpraɪmə(r)]
  • n.底漆;初级读本;底层涂料;入门书
  • 网络引物;引子;雷管
复数:primers  
PRIMER
n.
1.
[u][c]
底漆;底层涂料a type of paint that is put on wood, metal, etc. before it is painted to help the paint to stay on the surface
2.
[c]
初级读本;入门书a book that contains basic instructions
The President doesn't need a primer on national security.
总统对于国家安全是不需要读入门书的。
3.
[c]
识字课本;启蒙读本a book for teaching children how to read, or containing basic facts about a school subject

例句

释义:
类别:全部全部,口语口语,书面语书面语,标题标题,技术技术
来源:全部全部,字典字典,网络网络
难度:全部全部,简单简单,中等中等,