n.跟踪v.跟踪( track的现在分词 )，跟踪摄影，留下（脏）足迹，追随（潮流等）...

jackingbolt的音标：jackingbolt的英式发音音标为：[dʒækɪŋ'bəʊlt]jackingbolt的美式发音音标为：[dʒækɪŋ'boʊlt]...

hack的音标：hack的英式发音音标为：[hæk]hack的美式发音音标为：[hæk]...

n.一群，包裹，（纸牌的）一副，一组vt.& vi.（把…）打包，塞进，拥进，（使）聚集成团vt.挑选，压紧，携带，拧紧vi.包装，紧挤在一起，便于折叠收藏的，匆忙离去（有时与 off 连用）...

n.攻击者，进攻者，抨击者，（球类比赛的）攻击手...

A warping, bending, or cracking, as that by excessive force.翘曲, 弯曲,裂开:翘曲 、 弯曲或裂开, 如过强的外力引起.This paper introduces the realization of catalyzing and cracking unIt'self - protect interlock in MACS system.文章介绍了催化裂化装置自保联...

switchback的复数形式为：switchbacks...

n.前下角索...

逆弧...

n.拒绝( knockback的名词复数 )...

n.驼背，驼背者...

There is a backlog of repairs and maintenance in schools.对各学校的修缮和维护工作积压了一堆。Investment is needed to reduce the backlog of repairs.需要投资来減轻积压的维修工作.A huge backlog of work had built up.一大堆工作积压了起来....

New blackboards have been fitted up in all the classrooms.教室里都安装上了新黑板.How many blackboards are there in this room?在这个房间里有几块黑板?Some cleaned the blackboards, others mopped the floor.有些人擦黑板, 有些人拖地板....

I have received neither an acknowledgment nor a reply.我未收到任何复函或答复。This public acknowledgment of Ted's disability pained my mother.这一下大家都知道了特德的残疾，这让母亲非常痛苦。Grateful acknowledgment is made for permission to reprint.为获准...

n.挫折，涡流，倒退，逆流...

stacks的音标：stacks的英式发音音标为：[stæks]stacks的美式发音音标为：[stæks]...

take sth back的音标：...

n.灰色动物（如：灰鲸，黑头鸦，斑背潜鸭等）...

backlining的音标：backlining的英式发音音标为：[bæk'laɪnɪŋ]backlining的美式发音音标为：[bæk'laɪnɪŋ]...

He is a good friend that speaks well of us behind our backs.背后说好话,才是真朋友。Mark's always slagging off his friends behind their backs.马克老是在背后诋毁他的朋友.No, aboriginals have poor parodies of Eofol or Nighon horses, with hump...

I suffered a black-out which lasted for several minutes.我昏迷了几分钟。There was an electricity black-out in a large area in the north of the country.该国北部大片地区断电。I could feel blood draining from my face. I wondered whether I was...

Her bracelets were going clack-clack-clack, she was shaking so hard.她的手镯哗啦哗啦直响，她抖得厉害。He laughed softly, and answered: " Miss Clack is in the library. "他柔声地笑了笑, 回答说: “ 克拉克小姐在书房里. ”You want me to clack that jaw, make you g...

反虹吸...

n.压迫，镇压，打击( crackdown的名词复数 )...

使吃惊，使惊呆...

对…表示赞扬...

Seaside resorts such as Blackpool and Brighton are preparing for a tourist invasion.像布莱克浦与布赖顿这样的海滨胜地正为游客的大批涌入做准备。On the radio I caught Mr Hague's concluding remarks at the Blackpool conference.我在收音机中听到了黑格先生在布莱克浦会议上的...

n.爆竹，鞭炮( firecracker的名词复数 )...

n.反手，反手击球( backhand的名词复数 )...

backhanders的音标：...