Lack of exercise can lead to feelings of depression and exhaustion.缺乏锻炼会导致抑郁和疲劳。Despite his lack of experience, he got the job.他虽然经验不足，但还是获得了这份工作。There's a lack of fussiness about the way he works.他工作时不会过分注重细节。...

Any attempt to set back the wheel of history is doomed to failure.任何要使历史倒退的企图都是注定要失败的.It'set back the invaders far more than our forces had.它比我们的部队远为有效地阻碍了入侵部队的推进.Financial problems have set back our building progra...

blackjack的现在进行时为：blackjacking...

放回原处，拨回，向后推...

n.黑心病（植物组织内部变黑的疾病）...

brackets的音标：brackets的英式发音音标为：[brækəts]brackets的美式发音音标为：[brækəts]...

comebacks的音标：...

backsawing的音标：backsawing的英式发音音标为：[bæk'sɔ:ɪŋ]backsawing的美式发音音标为：[bæk'sɔɪŋ]...

hacker的复数形式为：hackers...

n.黑头粉刺( blackhead的名词复数 )...

n.粗帆布背包( haversack的名词复数 )...

backtrack的第三人称单数（三单）为：backtracks...

backfill的现在进行时为：backfilling...

hack的复数形式为：hacks...

the Union Jack的音标：...

vt.缺乏，缺少，需要的东西n.缺乏，不足，没有，缺少的东西...

I was absolutely knackered at the end of the match.在比赛结束时我体力完全透支了。My tape player's knackered.我的磁带放送机坏了。I'm completely knackered I ran all the way!我累坏了--我是跑着来的!...

James usually drives a little hatchback.詹姆斯通常开一辆小巧的掀背车。It all looked a bit of a squash as they squeezed inside the small hatchback.当他们挤进那辆小小的舱门式汽车时，看起来有些过于拥挤。This car is the successor to our popular hatchback model.这种汽车是...

tack的一般过去时为：tacked...

n.烙饼( flapjack的名词复数 )，大薄煎饼，烤饼，小粉盒...

Her mother groped for the back of the chair, her eyes blind with tears.她妈妈泪眼蒙眬地伸手去摸椅背。The photographers drew back to let us view the body...摄影师往后退开，好让我们查看尸体。I dropped the receiver back in the cradle.我把听筒放回听筒架上。She came b...

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

Looking back, she feels she should never have hung up her backpack.回首过去，她觉得自己真不该放下背包不再徒步旅行。He squirmed out of the straps of his backpack.他扭动身体，挣开背包的肩带。This suitcase, and a backpack.这个手提箱和背包....

砑光机，（纸）压光机...

backward的近义词有：back, backward, hind, behind。下面这些词均有"在后，向后"的含义：back：作为副词或形容词时，强调所修饰物的位置以及动作运动方向。backward：可用于人或物，指向后的，落后的或迟钝的。hind：指成对并且分前后的东西的"后面的"。behind：指一物同它物相对的位置或场所。...

shackle的一般过去时为：shackled...

hackle的第三人称单数（三单）为：hackles...

He was a famous racketeer in Chicago.他是芝加哥有名的骗子.Al Capone was a famous racketeer in Chicago.艾勒·凯波尼是芝加哥有名的诈骗钱财的人.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....

I finally hoisted him up with a block and tackle.我最终用滑轮组把他拉了上去。The ropes were tensioned using block and tackle.绳子通过滑轮拉紧.Block and tackle: Combination of pulleys with rope or cable, commonly used to augment pulling force....

black的最高级为：blackest...