blackjack的现在完成时为：blackjacked...

Bush has racked up victories in another five states.布什在另外五个州又获得了胜利.A toothache racked my jaw.牙疼使我的下巴难受极了.The pain racked him.痛苦折磨着他....

backwoodsmen的音标：...

延期交割金...

[电] 回答...

...

n.夹碎坚果的钳子，胡桃钳，瘪嘴...

blackmail的现在完成时为：blackmailed...

n.承认，承认书，感谢( acknowledgment的名词复数 )...

偿还，报复，报答，偿付...

botallackite的音标：botallackite的英式发音音标为：[bəʊ'tɔ:lækaɪt]botallackite的美式发音音标为：[boʊ'tɔlækaɪt]...

shack的第三人称单数（三单）为：shacks...

Grandfather is quite old and a bit hunchbacked.祖父年纪大了,背有点驼.The man crept, hunchbacked, down the last few steps and moved into the room.那个男人躬着背蹑手蹑脚地从最后几级台阶上走下来....

stack的现在进行时为：stacking...

tack的复数形式为：tacks...

blackguard的现在完成时为：blackguarded...

Changing stresses bring about more cracking and rock deformation.不断变化的应力导致更多的断裂和岩石变形。Mark, you'd better get cracking, the sooner the better.马克，你最好尽快开始，越快越好。She set off at a cracking pace to Mr Ramzan's Supersto...

smack的复数形式为：smacks...

bushwhack的现在完成时为：bushwhacked...

According to the survey, overall world trade has also slackened.根据这项调查，世界贸易整体上也有所放慢。At about five o'clock, business slackened off.大约5点钟的时候，生意闲了下来。Her grip slackened on Arnold's arm.她紧握着阿诺德的手松开了。...

cracks的音标：...

backslide的音标：backslide的英式发音音标为：['bækslaɪd]backslide的美式发音音标为：['bækˌslaɪd]...

He tracked down his cousin and uncle. The latter was sick.他追查到了堂弟和叔叔的下落，发现叔叔这时正在病中。A Federal Court case had been fast tracked to Wednesday.联邦法庭的一桩案件提前到星期三审理。Students are already being tracked.学生已经按能力分班了。...

blackmailed的音标：...

pack的复数形式为：packs...

blackdamp的音标：blackdamp的英式发音音标为：[blæk'dæmp]blackdamp的美式发音音标为：[blæk'dæmp]...

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...

It is an anthology that crackles with wit and wisdom.这是一本妙语连珠、智慧洋溢的文集.The message crackles over the radio in the police car.警车里的无线电带着卡嗒声发出了这个通知.When a flash of lightening shatters the dark, the radio crackles.当闪电划破夜空时, 收...

vt.束缚，加枷锁，妨碍，阻碍，给…上手铐，[电]在…装绝缘器n.束缚，羁绊，枷锁，镣铐...

adj.有背的，有财力支持的v.（使）后退， （使）倒退( back的过去式和过去分词 )，支持，作…的衬里，（用证据或理论来）证实（一种理论或主张）...