预先

• They do not preempt the land surface that is useful for other purposes .
  它们不预先占用对其它目的有用的地面。
• He burned a piece of sulphur which he had carefully weighed beforehand .
  他燃烧了一块预先仔细称过分量的硫磺。
• But it has a right to existence, a place staked out in advance .
  但是它有存在的权利，它的地位是预先确定了的。
• I am afraid you can not use those chairs -- they are already spoken for .
  很抱歉，你不能用这些椅子有人预先说好了要用的。
• Reservations in advance are necessary in most hotels, especially in large cities .
  旅馆，尤其是大城市的旅馆，多数要预先订房。
• With a stable light source, this can be determined from a preliminary observ ation .
  在光源稳定的情况下，可通过预先观测来确定。
• The play was so regularly performed that there was no need of written prompts .
  那部戏经常演出，因此不需使用预先写好的演员提示。
• His cordial agreement with all i said cut the ground from under my feet .
  不管我说什么，他都从心眼里赞同，这就把我的口预先住了。
• A bill of lading may be either freight prepaid or freight payable at destination .
  提单所规定的运费，可以预先支付，或在目的地支付。
• It is not possible to know in advance which form will yield a minimal cost circuit .
  我们不能预先知道哪种形式会得到最低成本的电路。