backdate的第三人称单数（三单）为：backdates...

The life jacket buoyed her up until help arrived.救生衣使她浮在水上直到获救.He reached over and retrieved his jacket from the back seat...他伸手从后座上取回了自己的夹克。Albert wore a brown suede jacket and jeans.艾伯特穿着棕色绒面夹克和牛仔裤。The velvet jacket ac...

shack的一般过去时为：shacked...

acknowledgement的复数形式为：acknowledgements...

n.美钞( greenback的名词复数 )...

backlands的音标：backlands的英式发音音标为：['bæklændz]backlands的美式发音音标为：['bæklændz]...

Doran stuck his head out of the window to acknowledge the cheering.多兰将头探出窗户向欢呼的人们致谢。Some of the clergy refused to acknowledge the new king'slegitimacy.一部分神职人员拒绝承认新国王的合法地位。Gradually he began to acknowledge his feelin...

n.守卫区，守卫队员，守卫队员的位置...

blackguard的现在完成时为：blackguarded...

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

She had a blackout and couldn't remember anything about the accident.她眼前一黑，那场事故就怎么也想不起来了。The hospital has an auxiliary power system in case of blackout.这家医院装有备用发电系统以防灯火管制.The radio blackout ends as the spacecraft sl...

attack的一般过去时为：attacked...

tack的现在完成时为：tacked...

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...

strike back的音标：strike back的英式发音音标为：[straik bæk]strike back的美式发音音标为：[straɪk bæk]...

packaging的音标：packaging的英式发音音标为：['pækɪdʒɪŋ]packaging的美式发音音标为：['pækədʒɪŋ]...

quack的复数形式为：quacks...

倒缆，反向弹簧...

shackle的现在进行时为：shackling...

stacks的音标：stacks的英式发音音标为：[stæks]stacks的美式发音音标为：[stæks]...

backlight的一般过去时为：backlighted...

The ecosystem will be thrown out of whack.生态系统将会失去平衡。After years of dieting, Carol's metabolism was completely out of whack.经过数年的节食, 卡罗尔的新陈代谢完全紊乱了.He took his ax and struck the trunk of the tree. Whack. Whack. Whack...

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....

backwards的音标：backwards的英式发音音标为：['bækwədz]backwards的美式发音音标为：['bækwərdz]...

We delved through a sackful of letters to draw the winning name.我们把手探进一袋信件中抽取获奖者。Letters and cards of support have been pouring in by the sackful.声援的信件和卡片成袋成袋地涌来。He got a whole sackful of letters from listeners following...

backslap的音标：backslap的英式发音音标为：['bækslæp]backslap的美式发音音标为：['bækslæp]...

backpedals的音标：...

blackmailers的音标：...

n.色谱纸束...

[人名] [英格兰人姓氏] 帕卡德商贩的轻蔑语，来源于中世纪英语，含义是“包，捆”(pack,bundle)+盎格鲁诺曼底法语轻蔑语后缀ard，[人名] [英格兰人姓氏] 帕卡德中世纪英语教名Pack的轻蔑语派生词，[人名] [英格兰人姓氏] 帕卡德来源于诺曼底人名+日耳曼语，含义是“战斗+勇敢的，坚强的”(fight+hardy,brave,strong)...