backtrack的音标：backtrack的英式发音音标为：['bæktræk]backtrack的美式发音音标为：['bækˌtræk]...

flyback的音标：flyback的英式发音音标为：['flaɪbæk]flyback的美式发音音标为：['flaɪbæk]...

n.臀部，背部，后方...

I gave her a lift back out to her house.我让她搭我的便车回家。Once you've given your word, don't try to back out.一旦许下诺言, 就不要想翻悔.We drove into a dead end and had to back out.我们把车子开进了一条死胡同,只得退出来....

throwback的复数形式为：throwbacks...

n.平装本，平装书...

backpedal的音标：backpedal的英式发音音标为：['bækˌpedl]backpedal的美式发音音标为：['bækˌpɛdl]...

vi.走原路，由原路返回，改变主意，取消诺言vt.追踪，循迹调查...

backtrack的现在完成时为：backtracked...

backbites的音标：...

linebackers的音标：...

n.帮助( backup的名词复数 )，（流水受阻造成的）阻塞，备份文件，替代物...

backcross的复数形式为：backcrosses...

adj.驼背的，弓背，罗锅儿...

反铲，反向铲，倒铲...

paperback的音标：paperback的英式发音音标为：['peɪpəbæk]paperback的美式发音音标为：['peɪpərbæk]...

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

Corporate backbiting is nothing new.在公司里，背后说人坏话并非什么新鲜事。Refrain your tongue from backbiting.不要在背后中伤人家.Do women deserve their reputation for cattiness and backbiting?这样的阴险和中伤朋友是否对得起自己的地位?You should refrain your tongue from...

倒转...

Experience tells us that Backspace does nothing of the sort.不过经验告诉我们,退格键不会那样.Press Backspace twice to remove the tab and the space.按两次Backspace删除制表符和空格.To erase, you must backspace.要想删除, 必须使用Backspace键....

comeback的音标：comeback的英式发音音标为：['kʌmbæk]comeback的美式发音音标为：['kʌmˌbæk]...

backlog的现在进行时为：backlogging...

back and forth的音标：back and forth的英式发音音标为：[bæk ænd fɔ:θ]back and forth的美式发音音标为：[bæk ənd fɔrθ]...

adj.向后的，反向的，怯生生的，落后的adv.向后地，相反地，回溯地...

backlight的现在完成时为：backlighted...

backstair的音标：backstair的英式发音音标为：['bækˌster]backstair的美式发音音标为：['bækˌster]...

back的现在进行时为：backing...

backslap的第三人称单数（三单）为：backslappes...

n.（画等的）背景，底色，背景资料，配乐...

You can always fall back on him when you are in difficulties.你碰到困难时总是可以求助于他.Doctors sometimes fall back on old cures.有时医生们求助于老的疗法.When necessary, instinct is the most reliable resource you can fall back on.必要时，最保险的办法就是凭直...