unrestricted—— adj.无限制的,自由的=unlimited
  unsubstantiated——未经证实的,未经证明的=unverified未经证实的,未经核对的
  unravel—— To separate and clarify the elements of (something mysterious or baffling); solve分散并澄清=discover
  undoubtedly——确实,无疑地,必定=unquestionably不成问题的;无可非议的;无可指责的
  undergo—— To pass through; experience经过;经历=experience
  unadorned—— Without adornment or embellishment; simple or plain未加装饰的;简单的,朴素的=plain
  venerable—— Commanding respect by virtue of age, dignity, character, or position值得敬重的,令人崇敬的=worship Ardent devotion; adoration.热烈的崇拜;崇敬
  variable—— Likely to change or vary; subject to variation; changeable易变的=unstable
  vivid—— Evoking lifelike images within the mind; heard, seen, or felt as if real生动的=graphic Described in vivid detail生动细致地描写的
  witness—— To take note of; observe作记录;观察=observe
  yield—— To give forth by or as if by a natural process, especially by cultivation生产=provide, produce
  Supplements
  adjunct-addition辅助-附加
  coarse-rough粗糙-粗糙
  collectively-together共同的-一起
  conclusive-definitive最后的,结论性的-最后的,确定性的
  concomitant with-in conjunction with与…相一致-与…相一致
  condone-mercy宽恕-宽恕
  conflict-opposition冲突-相反
  considerable-great(数量、程度)巨大的-巨大的
  considerable-much大量的-大量的,坚实的
  considerable-substantial大量的-大量的,坚实的
  consort-associate合伙人,伴侣-合伙人,伙伴
  consult-counsel商量-商量
  contemporary-existing当代的-现存的
  customary-usual习俗的-一般的
  dampen-moisten使潮湿-使潮湿
  daring-bold大胆的-大胆的
  demand-order要求-命令
  demonstrate-show证明-显示