Perth的音标：Perth的英式发音音标为：[pɜ:θ]Perth的美式发音音标为：[pɜrθ]...

perpetual的反义词有：temporary, transient, momentary, temporary。adj.perpetual的反义词（永久的;长期的）：temporary, transient, momentary。perpetual的反义词（其他释义）：temporary。...

permissive的反义词有：prohibitory, compelling。adj.permissive的反义词（许可的;放任的）：prohibitory。permissive的反义词（其他释义）：compelling。...

Outdoors, mosquitoes and midges were a perpetual torment.在户外，蚊子和蠓虫永远让人不得安生。the perpetual noise of traffic持续不断的交通噪声He is on a perpetual search for truth.他毕生在寻求真理....

...the perils of starring in a television commercial.拍电视广告的危险In these litigious, politically correct times, the perils of making gags can be considerable.在这种动辄法庭上见 、 政治上正确的时代, 讲低级笑话可能会相当危险.I can go on and on and on about...

高碘血，高碘血症，血碘过多...

prosper的反义词有：decline, decay, decay。vi.prosper的反义词（繁荣,昌盛）：decline, decay。prosper的反义词（其他释义）：decay。...

permanent的近义词有：permanent, eternal, perpetual, everlasting, endless。下面这些形容词均有"持久的，永久的"的含义：permanent：指总是处于相同的情况和地位，可长期持续下去，永久不变。eternal：语体较庄重，侧重指永远存在，无始无终。perpetual：语气最强，指保持永久不变，没有中断的行为，永无止境地持续下去。有时用于贬义，指令人厌烦之事。everlasting...

supper的音标：supper的英式发音音标为：['sʌpə(r)]supper的美式发音音标为：['sʌpɚ]...

A number of companies have now made the high - temperature superconductors into tapes a few millimetres across.液氮是一种便宜而易得的商品,沸点是77K,我们利用它可以在实际应用中比较容易地冷却超导体.We may also look forward to the application of superconductors i...

perquisite的音标：perquisite的英式发音音标为：['pɜ:kwɪzɪt]perquisite的美式发音音标为：['pɜrkwɪzɪt]...

experience的第三人称单数（三单）为：experiences...

The wallpaper was peeling away close to the ceiling.天花板附近的壁纸在剥落。The Coronata wallpaper lends a formal air to the dining room.科罗娜塔墙纸给餐厅增添了一种整齐有致的气氛。We were going to wallpaper that room anyway.反正我们本来就打算在那间屋里贴墙纸的。...

peripheral的近义词/同义词有：outer, circumjacent, circumferential, marginal, circumambient, circumscribing, encircling, ambient, environal, surrounding, outlying, circumfluent, unnecessary, unessential, minor, unimportant, superf...

She was excellently, imperturbably good; affectionate, docile, obedient , and much addicted to speaking the truth.她绝对善良, 脾气也好到了极点; 温柔 、 谦和 、 恭顺一贯爱说真话.We could face imperturbably the and find out the best countermeasure o...

lampern的音标：lampern的英式发音音标为：['læmpən]lampern的美式发音音标为：['læmpən]...

perish的音标：perish的英式发音音标为：['perɪʃ]perish的美式发音音标为：['pɛrɪʃ]...

chaperoned的音标：...

n.自动停止装置，自动制动器...

孔...

They told the shopkeeper to keep the change.他们告诉店主不用找钱了。Last month a shopkeeper's nephew was shot dead.上个月一名店主的侄子被枪杀了。The shopkeeper was fined for giving short weight [ measure ] .那店主因卖东西 短斤缺两 而受罚....

dispersimeter的音标：dispersimeter的英式发音音标为：[dɪs'pəsɪmi:tə]dispersimeter的美式发音音标为：[dɪs'pəsɪmitə]...

perpetuate的一般过去时为：perpetuated...

工作矿井...

Peking opera的音标：...

Decentralization and experimentation must be encouraged.必须鼓励权力下放和大胆尝试。experimentation with new teaching methods尝试新的教学方法The car for experimentation, is an embodiment of science and technology.试验用汽车是一种科学技术的体现....

perfumed的音标：...

n.超等位基因，超效等位基因...

impersonal的反义词有：personal, personal。adj.impersonal的反义词（非个人的;非人称的）：personal。impersonal的反义词（其他释义）：personal。...

n.皇帝，君主( emperor的名词复数 )...