v.回顾，倒退，追忆，回头一看...

backfiring的音标：...

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

backspaced的音标：...

F 1 females could be backcrossed to the male homozygous recessive parent.也可用雌性F1与隐性纯合雄性亲本回交....

挂回，退缩，犹豫，逡巡，踌躇不前...

扣留，隐瞒，阻止…前进，留在后面...

How dare you talk back to me!你竟敢跟我顶嘴!Don't talk back to your mother like that!不许和妈妈那样顶嘴.Not wanting to talk back either, he simply glared.也不愿还口.他只瞪了她一眼....

carry back的音标：carry back的英式发音音标为：['kæri bæk]carry back的美式发音音标为：['kæri bæk]...

backshank的音标：backshank的英式发音音标为：['bækʃæŋk]backshank的美式发音音标为：['bækʃæŋk]...

hunchback的复数形式为：hunchbacks...

bring back的音标：bring back的英式发音音标为：[briŋ bæk]bring back的美式发音音标为：[brɪŋ bæk]...

backsides的音标：...

checkback的音标：checkback的英式发音音标为：['tʃekbæk]checkback的美式发音音标为：['tʃekbæk]...

leatherback的音标：leatherback的英式发音音标为：['leðəbæk]leatherback的美式发音音标为：['leðərbæk]...

This study presents a new single - stage single - switch PFC flyback DC converter.文章研究了一种新型 单级 单开关PFC反激变换器.A novel multi - output forward - flyback converter with secondary side post regulation is proposed.详细分析了一种运用了后级调整...

n.极少参加投票的上议院议员，很少参加政治活动的上议院议员，边远落后地区的居民...

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

If the phone rings say you'll call back after dinner.如果有电话打来，就说你吃完饭再回电话。The salesman will call back at any house he missed.那个推销员将重访他所错过的每所房子.I'll call back after dinner.我晚饭后给你回个电话....

But the Backstreet Boys will.但“后街男孩”会.It is thought that they'll be as popular as the Backstreet Boys in the near future.人们认为在不久的将来他们会像“后街男孩”一样受欢迎.Backstreet Boys have added more UK dates to their comeback tour.后街男孩...

ring back的音标：ring back的英式发音音标为：[riŋ bæk]ring back的美式发音音标为：[rɪŋ bæk]...

quarterback的复数形式为：quarterbacks...

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camelback的音标：camelback的英式发音音标为：['kæməlbæk]camelback的美式发音音标为：['kæməlˌbæk]...

v.倒填日期( backdate的第三人称单数 )，使（付款等）在较早的日期开始生效...

She dreamed of being a bareback rider in a circus.她梦想成为马戏团中的一名无鞍马骑手。I rode bareback to the paddock.我骑着无鞍马来到了牧场。She prefers to ride her horse bareback.她更喜欢骑马时不用马鞍....

backlist的音标：backlist的英式发音音标为：['bæklɪst]backlist的美式发音音标为：['bækˌlɪst]...

backwardization的音标：backwardization的英式发音音标为：[bækwədaɪ'zeɪʃn]backwardization的美式发音音标为：[bækwədaɪ'zeɪʃn]...

backtracked的音标：...

At last, some suggestions were raised for the concrete backfill mining.最后对具体的充填开采方法提出了建议.This article is good for promotion of backfill.本文对充填技术的推广,具有一定的参考价值.The upward drift stoping with backfill is a mining method with ...