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staple

/ˈsteɪpəl/ American
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  • n. 订书钉
  • n. 主要产品
  • adj. 主要的, 常用的
Definition
  • n. a small piece of wire used to fasten paper
  • n. a main food or product
  • adj. main or most important, used regularly
Example
Rice is a staple food in many countries around the world.
大米是世界上许多国家的主食。
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