vt.　排除，阻止，妨碍 prevent; make sth impossible

　～ the possibility　排除可能
　～ sb from doing sth　阻止某人做某事

　I wouldn't want to preclude the possibility of a small payment being made.　我不想排除支付一笔小额款项的可能性。
　We try to preclude any possibility of misunderstanding.　我们努力排除任何误解的可能性。
　The suicide note precluded the possibility of murder.　那封绝命书排除了他杀的可能性。
　The temporary cease-fire agreement does not preclude possible retaliatory attacks later.　临时停火协定不能防止以后发生报复性攻击的可能性。
　The adoption of one choice often precludes the use of another.　选取了一种就常常不得使用另一种了。
　That sale precludes further development on this site.　卖出以后妨碍了这一地点的进一步发展。
　Abdication is precluded by the lack of a possible successor.　因为没有可能的继承者，让位无法实现。
　These conditions preclude our taking part in the negotiations.　这些条件使我们无法参加谈判。
　This contract does not preclude my being employed by others at the same time I am working for you.　这份合同并不禁止我在为你工作的同时受雇于他人。

 ♣ preclude from　(v.+prep.)
　使不能做…　prevent sb from; make impossible
　A prior engagement will preclude me from coming.　有约在先使我不能来。
　Death precluded him from completing his investigation.　死亡使他未能完成他的研究。
　Their move does not preclude others from investing.　他们这一行动并不影响其他人进行投资。
　The bad weather precluded us from having a picnic.　坏天气使我们不能去野餐。

 ♣ preclude, prevent
　这组词都表示“阻止”。其区别在于：prevent强调存在不可逾越的障碍， preclude则强调存在某种情况、条件或预防措施而阻止了某事的发生。

1. 表示“妨碍某人做某事”时可以说preclude sb from doing sth，而不可以说preclude sb to do sth.
2. 下列两句的意思相同：
　
　注意第一句中的from不可省去。