be lost

• It was widely supposed to have been lost during the war .
  普遍认为那东西在战争期间丢失了。
• The books seem to be lost .
  这些书好像是丢了。
• We are lost in sin !
  我们全都迷失在罪恶之中。
• Many a customer has been lost through negligence of service .
  由于服务不周失去了许多老主顾。
• The p in cupboard has been lost by assimilation to b .
  Cupboard里的p由于和b同化而失去读音。
• He who hesitates is lost .
  迟疑者必有失。
• I am not the man to let a cause be lost for want of a word .
  我这个人是少说一句话也不肯罢休的。
• She is losing color .
  她脸色渐渐苍白了。
• No time was to be lost .
  个能荒废时光。
• My good opinion of someone once lost is lost for ever .
  我对某个人一旦没有了好感，就永远没有了好感。