例句
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    千斤顶;起重器
    A jack is a device for lifting a heavy object off the ground, for example a car.
  • N-COUNT
    (纸牌中的)J牌,杰克
    A jack is a playing card whose value is between a ten and a queen. A jack is usually represented by a picture of a young man.