ponderable
有价值的，值得考虑的：considerable
ponderous
沉重的：great weight；沉闷无聊的：unpleasantly dull
pontificate
傲慢地说或做：speak pompous
pore
仔细浏览，仔细研究：read or study attentively
porous
多孔可渗透的：admitting liquid
portentous
预兆性的，凶兆的：sign of evil；勾起兴趣的，令人遐想的：eliciting amazement
poseur
故作姿态的，不真诚的人：affected insincere
posit
假定，断定：affirm
postulate
前提条件：starting point；假定为真：assume true
posture
姿势，姿态：way of holding the body；故作姿态，装模作样：pretended attitude
potable
饮品，尤指有酒精饮料：beverage；适于饮用的：suitable for drinking
potentate
有权势的人：has the power
potentiate
激活，加强：more active
pout
（尤指撅嘴或板着脸）表示不悦：show displeasure
practitioner
职业人士：profession
prairie
大草原：treeless grassland
prate
闲聊，空谈：talk idly
preach
传道，布道：sermon
precarious
危险的，不稳定的：lacking security, stability；可疑的，不明确的：uncertain
precedent
先例，前例：earlier occurrence；先前的：prior
precipice
悬崖峭壁：steep
precipitate
匆忙的：careless speed；促使，导致：cause to happen
precipitation
沉积物，尤指降水：deposit, rain, snow；仓促：disorderly speed
precipitous
非常陡峭的：steep；匆忙的：careless speed
preclude
预先阻止：make impossible in advance；排斥：exclude
precursor
先驱者，先导：precedes
predecessor
前任，先辈：previously occupied
predilection
爱好，偏袒：disposition favor
preeminent
优秀的，重要的：paramount
preempt
预先占有：seize, before others；替换：replace
preen
整理（羽毛）：smooth feathers；打扮修饰：dress oneself elaborate；自满：take pride
preface
序言：preliminary statement
pregnant
重要的，意味深长的：full of meaning；怀孕的：containing offspring
premeditate
预先考虑：consider beforehand
preoccupation
非常关系，全神贯注：extreme concern
preponderant
占优势的，更重要的：superior importance
prepossessing
给人好感的，有魅力的：impress favorably
preposterous
荒谬的，不符合常理的：contrary common sense
presage
征兆：sign or warning；预示，预言：predict
prescience
预知，先见：knowledge before
prescription
规定，传统的规矩：rule
preservative
防腐剂：protect against decay
prestige
声望，威望：respect
presumptuous
放肆的，冒昧的：overstepping bounds；傲慢的：feeling of superiority
pretense
虚假，伪装：pretending deceive；自大，优越感：exaggerated sense of one's importance
preternatural
超乎寻常：surpassing usual
prevail
盛行，战胜：greater in strength
prevalent
流行的，普遍的：commonly accepted
prevaricate
支吾其词，撒谎：evade truth
primordial
原始的，最初的：happening first
primp
精心打扮：adorn finicky
principal
主要的，重要的：highest importance, rank
pristine
纯净的，质朴的，未被文明腐蚀的：pure, free from dirt or decay
privation
缺乏，穷困：lack
probe
深入调查：penetrating investigation
probity
正直：moral standards
proclivity
癖性，爱好：inclination
procrastinate
（因为懒散）拖延：put off laziness
procure
获得，取得：get possession
prod
促使...行动：persuade
prodigal
挥霍的：spendthrift；败家子：spends freely
prodigious
巨大的：great in size；惊人的，了不起的：astonishment
profane
亵渎：treat abuse, irreverence, contempt；滥用：bad or improper use
proffer
献出，提供：offer
proficient
熟练的，精通的：advanced competence
profligate
挥金如土的，挥霍的：wasteful；败家子：spends money freely；堕落的人：below the normal moral standard
profundity
深奥，深刻：abstruse
profusion
丰富，大量：abundance；挥霍，浪费：wasteful
prohibitive
禁止的，阻止的：prohibit, restrain；（价格高得）抑制购买的：purchase
proliferate
快速繁殖；激增：grow or multiply by rapidly offspring
prolix
啰嗦的，冗长的：excessive length
prologue
序言：preface
prolong
延长，拖延：lengthen
proofread
校对：find errors and mark corrections
promulgate
正式宣布：make known
propagate
繁殖：increase；传播，宣传：spread out
propensity
倾向，癖好：inclination
prophetic
预言的，预示的：foretelling
propitiate
抚慰，劝解：appease
propitious
吉祥的：favorably happy outcome
proponent
建议者，支持者：support
propriety
礼节：conformity socially acceptable；适当，得体：suitable or fitting
prosaic
单调的，常见的：normal course of events
proscribe
禁止，排斥：forbid
prosecution
实行，执行：doing
proselytize
（使）改变信仰：change religious faith
prospect
探查，勘探：go into discovery；期待，期望的事物：looking forward to
prosperous
成功的，繁盛的：vigorous growth, well-being
prostrate
平躺（的），使平躺：lying flat；衰弱的，使衰竭：weakness
protean
善变的；多才多艺的：diversity, variety, versatile
protocol
正确的礼仪规范：correct conduct
protract
延长，拖长：lengthen, prolong
protrude
突出：project
protuberant
隆起的，凸出的：thrusting out
provident
节俭的：frugal, economical；有远见的：awareness for the future
providential
天意的，幸运（的）：divine intervention
provincial
狭隘（的）：limited perspective
provisional
临时的：temporary
provisory
有附带条件的；临时的：conditional
provoke
激怒：incite anger；驱使，激起：stir feeling