rack的现在进行时为：racking...

It was heresy of crackpots and wild men and it was really just an infantilism.那是狂想家和过激分子的异端邪说的产物,实在不过是幼稚病而已....

crackle的第三人称单数（三单）为：crackles...

track的第三人称单数（三单）为：tracks...

adj.有裂缝的，声音沙哑的，精神失常的v.破裂，崩溃(crack的过去分词)，发沙哑声...

rack的音标：rack的英式发音音标为：[ræk]rack的美式发音音标为：[ræk]...

crackerjack的音标：crackerjack的英式发音音标为：['krækədʒæk]crackerjack的美式发音音标为：['krækərdʒæk]...

Some backtracking is probably inevitable.有时改变决定可能是不可避免的。Leonard jumped in his car and started backtracking.伦纳德跳进车里，开始原路折返。The backtracking mechanism is an important facility for programming in logic.回溯机制是逻辑程序设计的重要设施....

She's calm and strong, and she is just not going to crack.她镇定而且坚强，绝不会垮掉。In severe cases, the skin can crack and weep.在恶劣的条件下，皮肤可能会开裂并流脓。Drug experts say it could spell the end of the crack epidemic.禁毒专家说它可能会结束强效可卡因吸...

n.声道，音带，声带，声迹，电影配音...

It could just as well apply to a racketeer or a thief who robs you.这套说辞对骗子和窃贼同样适用.He was in no sense a political prisoner, but a gangster and racketeer who rightly did six years in jail.他绝不是一个政治犯，而是一个歹徒和敲诈勒索犯，罪有应得地在监狱里蹲了...

rack的第三人称单数（三单）为：racks...

barrack的一般过去时为：barracked...

crack的近义词/同义词有：shot, blow, bang, break, slit, open, split, snap, explosion, flick, unscramble, slap, craze, fissure, hit, bang, accomplished, noise, break, whack, open, gulf, proficient, thunder, split, blow, opening, fr...

He seems to prefer intellectual counteroffensives to decrees and crackdowns.他似乎更倾向于用知性的反击来判决和痛击对手....

n.能力极强的人，极佳之物...

n.夹碎坚果的钳子，胡桃钳，瘪嘴...

Brackish waters generally support only a small range of faunas.咸水水域通常只能存活为数不多的几种动物。The factory has several shallow pools of brackish water.工厂有几个浅的咸水池。This kind of operation works best in brackish water.这种生产方法最宜于微咸水....

n.紫拟椋鸟，鹩哥...

crackdowns的音标：...

v.打开( crack的第三人称单数 )，（使…）开裂，说（笑话），开瓶...

Many boys explode firecrackers on the Fourth of July.许多男孩子在7月4日那天放爆竹.The firecrackers were crackling and spluttering.鞭炮劈里啪啦地响.The firecrackers scared the cat.爆竹声把那只猫吓跑了....

autotracker的音标：autotracker的英式发音音标为：['ɔ:təʊtrækər]autotracker的美式发音音标为：['ɔtoʊtrækər]...

adj.拷问的，痛苦的v.使痛苦，使焦虑，绞尽脑汁( rack的现在分词 )...

Officers will crack down on lunatic motorists who speed or drive too close to the car in front.警察将会严厉打击超速或是紧贴前车行驶的疯狂司机。The police are really beginning to crack down on drivers who park their cars just where they like.警察真...

tracksuits的音标：...

Tennis rackets and balls are provided.提供网球拍及网球。Modern tennis rackets are now apparently 20 per cent lighter.现代的网球拍据说比以前的轻20%。He was put into prison because of rackets.他因敲诈被捕入狱.He spent all day playing rackets on the beac...

n.（饲牛马用的）干草架，装有草架的货车，装草架...

Can you loan me your tennis racket?你能把网球拍借给我用一下 吗 ?He had his tennis racket strung.他将网球拍的弦装好了.I bought her a new tennis racket.我给她买了一只新的网球拍....

n.运动服，运动套装...