unknown

• From that moment she resolved to trace the unknown element .
  从那日起，她决心找出这种未知的元素。
• It is related to it in some direct but unknown fashion .
  它们之间有某种直接的但是形式未知的关系。
• This corroborative, young sir, was unknown to the ancients .
  年轻的先生，这种强壮剂古人是不知道的。
• The mechanism of this anomalous vascular response is unknown .
  此种不规则的血管反应的机制尚不清楚。
• It was totally unknown to the mass of the population as late as 1950 .
  迟至1950年，大多数人根本不知道它。
• They are exploring some of the world's last unknown waters .
  他们正在探索世界上剩下的一些未经探索的水域。
• In ancient society this territorial plan was unknown .
  在古代社会里，这种以地域为基础的方式是闻所未闻的。
• And still the cause of the phocomelia outbreak remained unknown .
  然而，畸形儿病例大量发生的原因不得而知。
• The function of the thymus was unknown until relatively recently .
  直到不久以前，人们对胸腺的功能尚不明了。
• Today howell's name is unknown to all but specialists .
  今天，豪威尔斯的名字除了一些专家外已经是鲜为人知了。