backprojection的音标：backprojection的英式发音音标为：[bækprəd'ʒekʃn]backprojection的美式发音音标为：[bækprəd'ʒekʃn]...

wacky的比较级为：wackier...

vi.发出轻微的爆裂声，发出噼啪声n.噼啪声，爆裂声，（碎瓷上的）裂纹...

Looking back, she feels she should never have hung up her backpack.回首过去，她觉得自己真不该放下背包不再徒步旅行。He squirmed out of the straps of his backpack.他扭动身体，挣开背包的肩带。This suitcase, and a backpack.这个手提箱和背包....

backlight的音标：backlight的英式发音音标为：['bæklaɪt]backlight的美式发音音标为：['bæklaɪt]...

hijacker的音标：hijacker的英式发音音标为：['haɪdʒækə(r)]hijacker的美式发音音标为：['haɪdʒækər]...

blackboards的音标：...

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

n.干非法勾当者，骗子...

backslide的现在完成时为：backslid...

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

package的现在完成时为：packaged...

Tack the cord around the cushion.用粗线沿着垫子边绷一圈。In desperation I changed tack.我走投无路，于是改变了策略。Tack them together with a 1.5 cm seam.用1.5厘米的针脚将它们暂时缝上。...

package的一般过去时为：packaged...

smack的现在进行时为：smacking...

n.公驴，愚人，傻子...

Liddie's doorway yawned blackly open at the end of the hall.走廊尽头利迪的门黑洞洞地敞开着。He looked at me blackly and asked why.他怒气冲冲地看着我,问我为什么....

vi.走原路，由原路返回，改变主意，取消诺言vt.追踪，循迹调查...

The cars of the train are coupled together by shackles.火车的车厢是用钩链连接起来的.The only and shackles you must break are within you.你唯一需要打破的锁链存在于你的内心.They tried to quit themselves of the shackles of metaphysics.他们尽力设法摆脱形而上学的枷锁....

crack的复数形式为：cracks...

backcoupling的音标：backcoupling的英式发音音标为：[bæ'ku:plɪŋ]backcoupling的美式发音音标为：[bæ'kuplɪŋ]...

Christie Boner : Well, I saw the backseat.克里斯蒂: 对, 我看到了后座.Why is he such a backseat driver when he rides with me?为什么他跟我一起坐车时,总是指手划脚?They accused the former prime minister of being a backseat driver.他们指责前首相越俎代庖。To avoid b...

blackmailing的音标：blackmailing的英式发音音标为：[b'lækmeɪlɪŋ]blackmailing的美式发音音标为：[b'lækmeɪlɪŋ]...

crackle的第三人称单数（三单）为：crackles...

I rode bareback to the paddock.我骑着无鞍马来到了牧场。a bareback rider一个骑无鞍马的骑手She prefers to ride her horse bareback.她更喜欢骑马时不用马鞍.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。...

My rucksack was too big for the luggage rack.我的背包太大了，行李架上放不下。Turn the cake the right way up on to a wire rack.把蛋糕翻到合适的方向对准金属丝架上。The old house soon went to rack and ruin.这所旧房子很快就毁坏了....

Dave was in a hurry to get back to work.戴夫急于回到工作岗位。"Now then," Max said, "to get back to the point."“好吧”，马克斯说，“回到正题上来。”"Oh," he said carelessly. "I'm in no hurry to get back."“噢，”他漫不经心地说道，“我不急着回去。”...

attacks的音标：...

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

backbiting的音标：backbiting的英式发音音标为：['bækbaɪtɪŋ]backbiting的美式发音音标为：[]...