blowback的音标：blowback的英式发音音标为：['bləʊbæk]blowback的美式发音音标为：['bloʊbæk]...

back的一般过去时为：backed...

background的音标：background的英式发音音标为：['bækgraʊnd]background的美式发音音标为：['bækˌɡraʊnd]...

The President's tactics could backfire.总统的策略可能会适得其反。A victory for Mr Bush and the internationalists could easily backfire.胜利,对于布什总统和国际主义者来说,极容易事与愿违.Don't criticize the students or it may backfire on you.不要总是批评学...

playback的音标：playback的英式发音音标为：['pleɪbæk]playback的美式发音音标为：['pleˌbæk]...

backdoor的音标：backdoor的英式发音音标为：['bækdɔ:]backdoor的美式发音音标为：['bækˌdɔr, -ˌdor]...

They went backpacking in Spain last year.他们去年背着背包在西班牙旅行。What advice does Luciano give David about backpacking in Europe?关于在欧洲背包徒步旅行,Luciano给了大卫哪些建议?Your review must be about gear that directly relates to backpacking.你的测评...

backstroke的反义词有：crawl。n.backstroke的反义词（仰泳）：crawl。...

back的近义词有：back, uphold, support, sustain, advocate,back, backward, hind, behind。下面这些动词均有"支持，支援，拥护"的含义：back：通常指对论点、行动、事业等的强有力支持。uphold：既可指积极努力对陷入困境者的支持，也可指给某人在行动、道义或信仰上的支持。support：含义广泛，多指在道义上或物质上支持某人，也可指对某项事业的支持。sustain：侧...

n.掷回，挫折，阻止，大倒退...

n.后座，次要位置...

倒缆，反向弹簧...

hatchback的复数形式为：hatchbacks...

backlight的一般过去时为：backlighted...

put sth back的音标：...

backfire的现在进行时为：backfiring...

His classmate do not enjoy his company because he always backbite others.他的同学不喜欢和他在一起,因为他老是在背后诽谤别人....

aback的反义词有：forward, ahead, ahead, forward。adv.aback的反义词（向后）：forward, ahead。aback的反义词（其他释义）：ahead, forward。...

backlog的一般过去时为：backlogged...

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

backstage的音标：backstage的英式发音音标为：[ˌbæk'steɪdʒ]backstage的美式发音音标为：['bæk'stedʒ]...

backwater的复数形式为：backwaters...

set sth back的音标：...

backtrack的现在完成时为：backtracked...

There are necessary acids for the fungis growth in the diamondback moths bodies.小菜蛾幼虫体内具有虫生真菌菌株营养生长所必需的氨基酸....

支持某人...

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....

n.后支索，后拉索（绳等），后牵索...

backrope的音标：backrope的英式发音音标为：[bæk'rəʊp]backrope的美式发音音标为：[bæk'roʊp]...

There's a ludicrously large backlist in books and this could mean a massive new revenue stream.书目多得令人匪夷所思,这可能预示一股新的庞大现金流....