v.攻击，进攻，抨击( attack的过去式和过去分词 )，非难，损害...

n.背( back的名词复数 )，背面，（椅子等的）靠背，后部v.（使）后退， （使）倒退( back的第三人称单数 )，支持，作…的衬里，（用证据或理论来）证实（一种理论或主张）...

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...

bookstack的音标：bookstack的英式发音音标为：['bʊkstæk]bookstack的美式发音音标为：['bʊkstæk]...

adj.（食品）涂上辣椒粉和调味品后油炸的，熏制的v.（使）变黑，把…弄黑( blacken的过去式和过去分词 )，发暗，败坏（名誉等），诋毁...

A burro is carrying salt of one large bag backcross a river.有一头驴子驮着一大袋子盐过河.The method can be conveniently applied to practical backcross breeding programs.该方法可以很方便地应用于实际的回交育种....

life jacket的复数形式为：life jackets...

Wacky ideas are commonplace among space scientists.太空科学家想法古怪是不足为奇的。Some of his friends are pretty wild and wacky characters.他的一些朋友是那种放荡不羁又怪里怪气的人。Have you been using that wacky paste stuff that made me see my sister get e...

ransack的现在完成时为：ransacked...

对…表示赞扬...

Kaolin forms pseudo - hexagonal plates, often regularly arranged in book - like or vermicular stacks.高岭石呈假六边形片体, 往往以书页 状 或蠕虫状规则排列.These stacks of thylakoids are called grana.这些成堆的类囊体称为质体基粒.Judge Stacks was appointed to o...

crack的近义词/同义词有：shot, blow, bang, break, slit, open, split, snap, explosion, flick, unscramble, slap, craze, fissure, hit, bang, accomplished, noise, break, whack, open, gulf, proficient, thunder, split, blow, opening, fr...

packaged的音标：packaged的英式发音音标为：['pækɪdʒd]packaged的美式发音音标为：['pækɪdʒd]...

背地，北地...

black的比较级为：blacker...

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。We are faced with a backlog of orders we can’t deal with.我们面对一大堆未交付的订单。(在英国指担心订货积压不易脱手，又“无奈”意；在美国指生意兴隆，有“踌躇满志”意)Investment is needed to reduce th...

n.敲诈者，勒索者...

acknowledge的一般过去时为：acknowledged...

n.挫折，阻碍，退步，逆流...

n.黑颜料( black的名词复数 )v.弄脏( black的第三人称单数 )，使变黑，抵制，把黑油彩抹在（演员）脸上...

He gave the donkey a whack across the back with his stick.他拿棍子朝驴背上狠狠打了一下。The majority of people in this country pay their whack.该国大部分人尽了他们的一份力。We need to win a fair whack of the contracts.我们需要赢得这些合同中的相当大的份额。...

backlighting的音标：backlighting的英式发音音标为：['bæklaɪtɪŋ]backlighting的美式发音音标为：['bæklaɪtɪŋ]...

halfback的音标：halfback的英式发音音标为：['hɑ:fbæk]halfback的美式发音音标为：['hæfbæk]...

He just gazed at me slack-jawed.他张大了嘴巴，吃惊地盯着我。Many publishers have simply become far too slack.许多出版商就是变得过于懈怠了。The boy's jaw went slack.男孩张大了嘴巴。...

Beyond that, an ideal network backbone would provide comprehensive manageability and robust fault tolerance.此外, 理想的主干网能提供综合的管理能力和有力的容错功能.More and more people are deciding that political power must be the backbone of ever...

v.噼啪响( clack的过去式和过去分词 )...

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。These points are tracked by means of four huge hourglasses.这些分数是由四个巨大的沙漏来记录的.It was not long before I tracked down the lost watch.不久我就找到了遗失的表。Stud...

rack的一般过去时为：racked...

slack的第三人称单数（三单）为：slacks...

diamondback的音标：diamondback的英式发音音标为：['daɪəməndbæk]diamondback的美式发音音标为：['daɪəməndˌbæk]...