never know

• He never knew when everything was lost, and if it was, he would fight out of it .
  对他来说，毫无指望的情况是没有的，即使遇到那种情况，他也要扭转局面。
• I have never known much good done by those who affected to trade for the public good .
  我从来没有听说过，那些假装为公众幸福而经营贸易的人做了多少好事。
• I never know for what he wanted the gun till i was taken up-i do not know yet why he wanted .
  我直到被捕以后，都不知道他要那支枪做什么--我到现在还不明白。
• I had been condescended to, ignored, counted out in a way i had never known before .
  人们从未以这样高高在上的态度对待过我，从未如此轻视我，不把我放在眼里。
• The girl had never known the shade of the old cypress, or heard the calling of faithful companions .
  女儿既未领略过那株老柏树的浓荫，也从没听过白头偕老的夫妻的教诲。
• You never know with these oriental gentlemen, they've sometimes got quite a big entourage with them .
  对于这些东方人，你永远也搞不清，他们有时候搞了那么一大帮子侍从。
• The very building in which he would spend the rest of his natural life would be the best he has never known .
  正是这座他愿在此间了此余生的建筑物将是他从未住过的最好建筑。
• We must turn everything to account in order to develop our national economy at a rate never known before in our history .
  我们必须利用一切条件，以空前未有的速度发展我国国民经济。
• "but have you never known people to do things they didn't want to instead of things they did? "
  “但是，你就没有见到过人们做那些他们不愿做的事情，而没有去做那些他们想做的事情吗？”
• Isabel, who had never known any one with so much manner immediately classed her as the most affected of women .
  伊莎贝尔从没见过这么装模作样的人，由此立即把她归入最会做作的女人这一类。