flex的现在完成时怎么写？

v.弯曲（关节），收缩（肌肉），显示力量n.弯曲，[电]花线...

flex的音标：flex的英式发音音标为：[fleks]flex的美式发音音标为：[flɛks]...

flex的近义词/同义词有：curve, bend, arch, curve, deflect, bend, arch。vt. & vi.flex的近义词（弯曲;伸缩）：curve, bend, arch。flex的近义词（其他释义）：curve, deflect, bend, arch。...

Take a comfortably wide stance and flex your knees a little...双腿适度分开站立，双膝稍稍弯曲。I was required to hold out my arms and flex my pectorals.我被要求伸展手臂，收紧胸肌。...a two-bar electric fire with a frayed flex.电线已经磨损的双片电热炉Take a comfor...

flex的现在进行时为：flexing...

flex的第三人称单数（三单）为：flexes...

flex的一般过去时为：flexed...

I was required to hold out my arms and flex my pectorals.我被要求伸展手臂，收紧胸肌。Take a comfortably wide stance and flex your knees a little.双腿适度分开站立，双膝稍稍弯曲。Side cutters are useful for cutting electrical flex to length.切边钳适用于剪切电线....

这家广告代理商每年销售额达14亿美元。The advertising agency rang up 1.4 billion dollars in yearly sales.广告标准管理局控告房地产代理商使用无耻的谎言。The Advertising Standards Authority accused estate agents of using blatant untruths.记住，房地产代理商是为房地产卖方服务的。Remembe...

canvases的音标：...

By the by, he is not my son.顺便提一句, 他不是我儿子.Land, sea and air, car, even by the by, singular, human know to man.陆, 海,空, 汽车, 甚至是, 奇异, 人类知道的人....

“纸烟”的近义词/同义词：卷烟, 香烟。...

This substance has now been cloned by molecular biologists.该物质现在已被分子生物学家克隆。Fourteen ESTs were cloned by RT - PCR and SSH analysis of the Rht - Blc isogenic lines.通过RT -PCR 和对Rht近等基因系的抑制缩减杂交(SSH),我们还克隆了14个有明显开放读码框的EST序列.E...

When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。The difference between who you ...

He wasn't drafted for the war; he volunteered for the Navy.他不是因为这次战争才被征召入伍的，他是自愿加入海军的。The declaration was drafted by a committee chaired by Dr Robert Song.宣言由罗伯特·桑博士领导的委员会起草。Extra police have been drafted into the t...

像大多数的木星卫星, 木卫五同步自转, 它的长轴直指木星.Like most of Jupiter's moons, Amalthea rotates synchronously; its long axis is pointed toward Jupiter....

Out of Puritanism came the intense work ethic.严格的职业道德源于清教主义。Will severe selection standards create elitism and threaten the Olympic ethic of participation?严格的选拔标准是否会造成精英主义，进而危及奥林匹克重在参与的理念呢？I believe in a work ethic of pe...

n.己糖激酶...

消旋四氢巴马丁，消旋延胡索乙素...

冬季温泉是当下时髦人士体验真正的休息娱乐的的首选。Winter spas are now the smart set's choice for serious R&R.按照我们的指南把家营造成适合工作、休息和娱乐的地方。Follow our guide to making your home a fit place to work, rest and play.她省钱的需要比她花钱娱乐的愿望更重要.Her need to sa...

v.精炼( refine的第三人称单数 )，精制，使纯净，使文雅高尚...

adj.棍棒状的，一端膨大的，棒形，锤形...

Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来.The slowness is dissolve in hydrofluoric acid and hot oil ofvitriols.缓慢溶于氢氟酸...