A perennial is a plant that lives indefinitely.多年生植物是指能存活很多年的植物。the perennial problem of water shortage缺水这个老问题I wonder at her perennial youthfulness.我对她青春常驻感到惊讶....

hyperbolic的音标：hyperbolic的英式发音音标为：[ˌhaɪpə'bɒlɪk]hyperbolic的美式发音音标为：[ˌhaɪpər'bɑlɪk]...

perpetuate的一般过去时为：perpetuated...

In desperation I changed tack.我走投无路，于是改变了策略。In desperation , she called Louise and asked for her help.在走投无路的情况下，她给路易丝打了个电话请她帮忙。In his desperation to escape, Tom had slipped and broken a leg.汤姆在拼命逃跑时滑倒摔断了一条腿....

superficially的音标：superficially的英式发音音标为：[ˌsju:pə'fɪʃəlɪ]superficially的美式发音音标为：['supɚ'fɪʃəlɪ]...

ampere的音标：ampere的英式发音音标为：['æmpeə(r)]ampere的美式发音音标为：['æmˌpɪr]...

She lifted the stopper from the carafe.她拔出玻璃酒瓶上的瓶塞.That put a stopper on the rumour.这样一来,就把谣言止住了.Papa's stare is a conventional stopper to our requests.爸爸的瞪眼是对我们请求事项的常见的决定性的回答....

n.柑果，柠檬果( hesperidium的名词复数 )...

n.跳高运动员，跳跃者，无袖套衫，针织套衫，[电]跳线，跨接线，经过训练能跳越障碍的马...

permeate的现在完成时为：permeated...

n.人格化，拟人化...

n.曲霉病（由曲霉属真菌引起的传染病，多见于鸟类，较少发生于人）...

rapper的复数形式为：rappers...

hyperchromic的音标：hyperchromic的英式发音音标为：[haɪpə'krəʊmɪk]hyperchromic的美式发音音标为：[haɪpə'kroʊmɪk]...

perpetuate的音标：perpetuate的英式发音音标为：[pə'petʃueɪt]perpetuate的美式发音音标为：[pər'petʃueɪt]...

operative的音标：operative的英式发音音标为：['ɒpərətɪv]operative的美式发音音标为：['ɑpərətɪv]...

n.拖鞋( slipper的名词复数 )...

I found the scene in which Percy proposed to Olive tremendously poignant.我觉得珀西向奥利芙求婚的一幕太让人心酸了。Percy was lying prostrate, his arms outstretched and his eyes closed.珀西闭着眼四仰八叉地平躺着。Percy's enchant-ment with orchids date...

The perch is a freshwater fish.鲈鱼是淡水鱼。A macaw screeched at him from its perch.一只金刚鹦鹉站在栖木上冲他尖叫。I like fishing for perch on vacation.我喜欢在假期中钓鲈鱼....

n.不灭，不死，不朽...

cooperated的音标：...

permission的复数形式为：permissions...

permeate的音标：permeate的英式发音音标为：['pɜ:mieɪt]permeate的美式发音音标为：['pɜrmieɪt]...

recuperate的现在完成时为：recuperated...

You're more than bookkeepers.那你们大多数的工作人员是记帐员.Some bookkeepers use a far fight - hand column to keep an up - to - date balance of the account.有的账薄在右边再加一栏,记载账户的最新余额.Some bookkeepers use a far right - hand column to ke...

vt.使陷于危险，危及...

viper的复数形式为：vipers...

Peruvian的复数形式为：Peruvians...

hypervagotonia的音标：hypervagotonia的英式发音音标为：[haɪpəveɪgə'təʊnɪə]hypervagotonia的美式发音音标为：[haɪpəveɪgə'toʊnɪr]...

adj.终年的，长久的，多年生的，不断生长的，四季不断的n.多年生植物，长期存在的...