slack的最高级为：slackest...

n.钻杆（一种手持式风钻）...

n.骨干( backbone的名词复数 )，脊骨，骨气，脊骨状物...

adj.带黑色的...

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....

racks的音标：...

He claims Pasolini overtook and tackled him, pushing him into the dirt.他声称帕索利尼追上去打他，把他推倒在烂泥里。He was rugby tackled by a policeman after breaking through police lines.他在突破警戒线后被一名警察拦截了。They tackled them to the best of their...

come back的音标：come back的英式发音音标为：[kʌm bæk]come back的美式发音音标为：[kʌm bæk]...

There is a plentiful supply of arms on the black market.黑市上有大量武器出售。I slowly zipped and locked the heavy black nylon bags.我慢慢地把那些沉重的黑色尼龙袋的拉链拉上并锁好。She was demurely dressed in a black woollen suit.她穿了一身黑色羊毛套装，显得很庄重。...

backlight的第三人称单数（三单）为：backlights...

acknowledged的近义词/同义词有：conceded, declared, professed, recognized, confessed, approved, accepted, accredited, admitted, avowed, yes, confirmed。adj.acknowledged的近义词（被承认的,被接受的）：conceded, declared, professed, recognized, conf...

Corporate backbiting is nothing new.在公司里，背后说人坏话并非什么新鲜事。You should refrain your tongue from backbiting.你不要背后诽谤人.Refrain your tongue from backbiting.不要在背后中伤人家....

n.硬砂岩...

Gordon: Hackman has been a Hollywood bigwig for more than 40 years.戈登: 海克曼在好来坞走红已经四十多年了.She was waiting line drop off 15 - year - old Tyler and 11 - year - old Daniel Hackman.她正在列队等待送15 岁 的泰勒和11 岁 的丹尼尔海克曼下车.Gordon: Let&#...

package的第三人称单数（三单）为：packages...

n.垛，干草堆，（一排）烟囱，层积，整个的藏书架排列，书架vt.& vi.堆成堆，垛，堆起来或覆盖住，洗牌作弊，秘密事先运作...

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...

adj.要倒似的，要塌似的，摇晃的，没主意的，放荡的...

backguy的音标：backguy的英式发音音标为：[bæ'ɡaɪ]backguy的美式发音音标为：[bæ'ɡaɪ]...

n.拆除，退火...

hackneys的音标：...

backdrop的复数形式为：backdrops...

unpacking的音标：unpacking的英式发音音标为：['ʌn'pækɪŋ]unpacking的美式发音音标为：['ʌn'pækɪŋ]...

backcross的音标：backcross的英式发音音标为：[bækk'rɒs]backcross的美式发音音标为：[bækk'rɒs]...

After all, if they had wanted me, they could so easily have blackmailed me to stay.再说, 如果他们需要我, 他们本来是可以很容易地通过讹诈手段把我留下来的.The government insisted that it would not be blackmailed by violence...政府坚持说它不会接受暴力讹诈。Anna: The lady...

I turned to Jacky, my nostrils flaring in disgust.我转过身厌恶地看着杰基，鼻翼呼呼地翕动着。Jacky was just as hungry as Billy.杰克也和比利一样饿了.Mum stressed that Jacky should be home by ten o'clock.妈妈强调,杰基一定要在十点钟之前回家....

Don't think this job a piece of cake. You'll have to rack your brains once you start on it.别以为这工作是易如反掌的事, 你做了就知道它是很伤脑筋的.Turn the cake the right way up on to a wire rack…把蛋糕翻到合适的方向对准金属丝架上。I took the key for the ...

vi.发生回火，适得其反，事与愿违的结果n.逆火...

vt.包装，把…装箱，向…提出一揽子计划n.包裹，包装袋，包装盒，一组建议...

tack的现在进行时为：tacking...