backcross的现在完成时为：backcrossed...

backstitches的音标：...

He'd seen the proof in black and white.他已经看过书面证据。The wallpaper comes in black and white only.这种墙纸只有黑白的。She saw things in black and white.她总是用简单绝对的眼光看待事物。...

n.偏僻街道，小巷adj.偷偷摸摸的，幕后的，秘密的，非法的...

His colleagues were aghast at the sackings...他的同事们对于这些解雇感到很吃惊。Those may take the form of sackings redundancies, temporary layoffs or retirements.这些形式有开除,作为编余人员, 暂时解雇或退休.He described talk of sackings as scare stories.他说人们...

v.以棒打，胁迫（blackjack的第三人称单数形式）...

打包， 收拾，停止工作， 停止运转...

tracksuits的音标：...

slack的一般过去时为：slacked...

jackets的音标：...

排气管内爆音...

Can I come back to the question of policing once again?我能再回到维护治安的问题上来吗？"Come back!" he called after me.“回来！”他朝我喊道。She's going to come back every so often.她会偶尔回来的。...

n.抢劫者，劫持者，劫机者，劫匪...

The other end of the road old shacks, he again fell asleep.在大路的另一头老人的窝棚里, 他又睡着了.The vast majority live in tin shacks without electricity, clean water or sanitary facilities.大多数人生活在简陋的铁皮屋子里，没有电，没有干净的水，也没有卫生设施。Mounds of oy...

blacken的现在进行时为：blackening...

packs的音标：...

VIDEO The team unpacks the reactor parts sent from Florida and begins assembling the machine.视频:团队解压缩反应堆部分发送来自佛罗里达州,并开始组装机器....

Blackland element with fertility taller and celebrated, but come for years its fertility drops apparently.黑土素以肥力较高而著称, 但多年来其地力明显下降....

地下水逆流，洞中洪水...

n.爆竹，鞭炮...

black sheep的音标：black sheep的英式发音音标为：[blæk ʃi:p]black sheep的美式发音音标为：[blæk ʃip]...

Packard的音标：...

pay back的音标：pay back的英式发音音标为：[pei bæk]pay back的美式发音音标为：[pe bæk]...

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]...

give back的音标：give back的英式发音音标为：[ɡiv bæk]give back的美式发音音标为：[ɡɪv bæk]...

I go back on the dole when the shooting season's finished.狩猎季节过后，我又重靠领取救济金过活。I give you my word and I'll never go back on it.一言为定,决不反悔.Did he have the nerve to go back on his word?他竟有脸赖账 吗 ?...

jackknifing的音标：jackknifing的英式发音音标为：['dʒæknaɪfɪŋ]jackknifing的美式发音音标为：['dʒæknaɪfɪŋ]...

v.重新包装( repackage的现在分词 )...

vt.缺乏，缺少，需要的东西n.缺乏，不足，没有，缺少的东西...

quack的现在完成时为：quacked...