practicable a．能实行的，行得通的，可以实行的
Everybody gets ideas，but innovators work consciously on theirs，and they follow them through until they prove practicable (a.) or otherwise．[1994年阅读]
[译文]每一个人都有想法，但创新者会自觉地钻研他的想法，并不懈努力直到证明想法切实可行或不可行。
preconception n．预想，偏见
Some，however，are less reasonable processes of different growth in which preconception of the form scientific theory ought to take，by persons in authority，act to alter the growth pattern of different areas．[1996年翻译]
[译文]然而，在不同的发展过程中，有些不怎么合理一在这些发展过程中，一些权威人士对科学研究应该采取的方式有偏见，从而改变了不同科学领域的发展模式。
preoccupation n．当务之急
If the preoccupation (n.) of schools with academic work was lessened，more time might be spent teaching children surer values．[1995年阅读]
[译文]如果学校对学业的强调减少一些，也许就有更多的时间教孩子更重要的价值观念。
presumptively ad．据推测
He says medical licensing boards “must make it clear…that painful deaths are presumptively (ad.) ones that are incompetently managed and should result in license suspension．”[2002年阅读]
[译文]他说，行医资格理事会“必须明确表明一病人痛苦地死亡，可以推定，是由于医生处理不力造成的，应该因此吊销其从医资格”。
presumptuous a．专横的。自以为是的
It is，however，presumptuous (a.) to insist that there will only be so many jobs for so many scientists，so many businessmen，so many accountants．[1999年阅读]
[译文]然而，去臆断科学家、商人、会计职位的数量就太自以为是了。