• 基础释义
  • 例句
  • 柯林斯词典释义
例句
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    (登山或远足时用的)背包,旅行包
    A rucksack is a bag with straps that go over your shoulders, so that you can carry things on your back, for example when you are walking or climbing.