例句
英语四级真题
  • Decades of working over coal fires in tight, closed spaces with little fresh airto ensure his dishes would not get col had fatally damaged his lungs.
    2018年12月四级真题(第二套)阅读 Section B
英英词典释义
  • Noun
    1. a pass between mountain peaks
行业词典
  • 体育: 山坳;
    医学: 小凹:为牙间龈的谷状凹陷,连接颊乳头和舌乳头,与邻间区的形态一致;