rudimentary [ˌrudəˈmɛntəri, -ˈmɛntri]

例句:

• Some of the apps include a rudimentary financial calculator.
  来自SA
• They were given only rudimentary training in the job.
  他们仅仅受到过基本的职业训练。
  
• He has only a rudimentary knowledge of the subject.
  他对这一科只有初步的认识.
  
• I have only a rudimentary knowledge of chemistry.
  我只有些粗浅的化学知识.
  
• But as a rudimentary part of a child's education?
  来自WSJ
• The mainly rudimentary movement has a balletic base.
  来自THETIMES