prac

例句:

• Jeff: This method is easy to succeed quickly . Annie should prac - tice the flying saucer.
  杰夫: 这种方法容易速成, 安妮应该练飞碟.
  
• This paper expounds the mining prac tice of hunan huanshaping lead - zinc mine.
  回顾总结了湖南黄沙坪铅锌矿采矿实践.
  
• It is shown by prac - tical prediction that the predictions were stable and had higher precision.
  实际结果表明:预测结果稳定可靠,具有较高的精度.