Nutcracker的音标：Nutcracker的英式发音音标为：['nʌtkrækə(r)]Nutcracker的美式发音音标为：['nʌtˌkrækɚ]...

Leonard jumped in his car and started backtracking.伦纳德跳进车里，开始原路折返。Some backtracking is probably inevitable.有时改变决定可能是不可避免的。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.Leon...

backtrack的现在进行时为：backtracking...

amtrack的音标：amtrack的英式发音音标为：[æmt'ræk]amtrack的美式发音音标为：[æmt'ræk]...

adj.精神错乱的，癫狂的n.爆竹( cracker的名词复数 )，薄脆饼干，（认为）十分愉快的事，迷人的姑娘...

rack的复数形式为：racks...

n.欧洲蕨，凤尾草...

n.小路，小道，痕迹，踪迹，轨道，音轨，方针，路线vt.跟踪，监看，监测，追踪vi.沿着轨道前进，沿着一条路走，旅行，位于一队列中...

循规蹈矩...

She reached into the wardrobe and extracted another tracksuit.她伸手又从衣橱里取出一件运动服。She wore blue tracksuit bottoms.她穿了一件蓝色田径裤。I changed into a tracksuit.我换上一身运动装。...

The only sound was the crackle of breaking ice.唯一的声响是冰层噼噼啪啪碎裂的声音。We heard the rapid crackle of automatic gunfire.我们听到自动枪炮发出快速的射击声.The crackle of the envelope in his hands was loud.信封拿在他手里发出很响的沙沙声....

lose track of的音标：lose track of的英式发音音标为：[lu:z træk ɔv]lose track of的美式发音音标为：[luz træk ʌv]...

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.Tennis rackets and balls are provided.提供网球拍及网球。...

v.向…提供营房（或棚屋）( barrack的过去式和过去分词 )，使住入营房（或棚屋），大叫，喝倒彩起哄...

backtracking的音标：backtracking的英式发音音标为：['bæktrækɪŋ]backtracking的美式发音音标为：['bæktrækɪŋ]...

n.碳氢化合物分裂器，氢化裂解器...

adj.有裂痕的，有脆皮的v.发出轻微的爆裂声，发出噼啪声( crackle的过去式 )...

He could hear the crackling of burning trees.他可以听见树木燃烧发出的噼啪声。The crackling became louder and louder.爆裂声变得越来越响.The firecrackers were crackling and spluttering.鞭炮劈里啪啦地响....

hackmarack的音标：hackmarack的英式发音音标为：['hækmæræk]hackmarack的美式发音音标为：['hækmæræk]...

racked的音标：racked的英式发音音标为：['rækt]racked的美式发音音标为：['rækt]...

soundtrack的音标：soundtrack的英式发音音标为：['saʊndtræk]soundtrack的美式发音音标为：['saʊndˌtræk]...

The light of a lamp glimmered throught the cracks of the door.一盏油灯透过门缝闪烁着.They mudded the cracks courtyard wall.他们用泥把院墙的裂缝堵上.Fine , random cracks or fissures in a paint film, caused by shrinkage.因为收缩而导致的涂层细小的, 无规律的破裂.The...

racket的音标：racket的英式发音音标为：['rækɪt]racket的美式发音音标为：['rækɪt]...

beaten track的音标：beaten track的英式发音音标为：['bi:tn træk]beaten track的美式发音音标为：['bitn træk]...

n.跑道，赛马场，赛车场...

n.记录...

barrack的一般过去时为：barracked...

barrack的复数形式为：barracks...

n.怪人，狂人adj.古怪的，离奇的，不切实际的...

She was no more a crackpot than the rest of us.她和我们一样正常。That's not the way to do it, you crackpot.不是那样做的蠢材.He was prone to dismiss himself as " that well - known crackpot ".他常自嘲为 “ 那个著名的怪人 ”....