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...

Cankered material can produce effluvial carcinogen aldehyde . 2.腐烂的物质可以产生恶臭的致癌物质乙醛....

A dry - cell powered photographic apparatus that holds and electrically triggers a flashbulb.闪光枪一种装有并以电引发闪光灯泡的用电池供电的照相器材....

n.火把，有装饰的大烛台...

flop的复数形式为：flops...

n.燧石，火石，（打火机等的）打火石...

Sunflowers grow promptly.向日葵生长迅速。...a field of knee-high sunflowers.一片齐膝高的向日葵I frequently use sunflowers as symbols of strength.我经常用向日葵来作为力量的象征。The sunflowers could also be sold to local florists for profit.向日葵也可以卖给当地花店来...

flipper的音标：flipper的英式发音音标为：['flɪpə(r)]flipper的美式发音音标为：['flɪpɚ]...

丁咯地尔...

floodlighting的音标：floodlighting的英式发音音标为：['flʌdlaɪtɪŋ]floodlighting的美式发音音标为：['flʌdlaɪtɪŋ]...

clariflocculator的音标：clariflocculator的英式发音音标为：[klæ'raɪfləkjʊleɪtə]clariflocculator的美式发音音标为：[klæ'raɪfləkjʊleɪtə]...

n.二乙基二硫代磷酸盐（一种浮选剂），“黑药”...

I flunked math in second grade.我二年级时数学不及格。He flunked out ( of college ) last year.他去年 ( 从大学 ) 退学了.I'd like to thank the two professors who flunked her.我倒要谢谢那两位给她不及格的先生....

greenfly的复数形式为：greenflies...

adj.谄媚的，讨好的，谄媚的v.阿谀，向…奉承，使高兴( flatter的现在分词)...

n.磁流体动力学...

shuffling的音标：shuffling的英式发音音标为：['ʃʌflɪŋ]shuffling的美式发音音标为：['ʃʌfəlɪŋ]...

flakily的音标：flakily的英式发音音标为：[f'leɪkɪlɪ]flakily的美式发音音标为：[f'leɪkɪlɪ]...

Flagellidia的音标：...

Effect of influent composition on membrane fouling in membrane bioreactors was investigated.研究了膜生物反应器中进水组成对膜污染的影响.What other writers has been the most influent for your own development?还有什么其他的作家一直是影响自己的发展?This shows that...

A large proportion of the fluorine is vaporized during the concentration process.在浓缩过程中大部份氟蒸出.The fluorine does not accumulate indefinitely in the water.氟不会在水里无限制地积累.If the fluorine content is high, it may increase plant...

maltoflavin的音标：maltoflavin的英式发音音标为：[mɔ:ltəʊ'flævɪn]maltoflavin的美式发音音标为：[mɔltoʊ'flævɪn]...

n.环流，回流，周流...

Foods and fluids are mixed in the stomach by its muscular contractions.通过胃部肌肉的收缩食物和流质在胃中混合。Scientists observe the same dynamics in fluids.科学家们在液体中观察到了同样的驱动力。He is taking cold fluids.他正在喝冷饮....

flatboat的复数形式为：flatboats...

flat的最高级为：flattest...

氟代...

Fleshly sense had been capable of grasping the whole.肉体的感官能包罗全体.The family of Abraham is based upon faith and not fleshly descent.这是建于信而非血缘关系的基础上的.Abstain from fleshly lusts , which was against the soul.贪欲是地狱之门,寡欲使幸运临门....

antiflamison的音标：antiflamison的英式发音音标为：[æn'taɪfləmɪsn]antiflamison的美式发音音标为：[æn'taɪfləmɪsn]...

n.有沟槽的衣料，吹笛子，笛声，刻凹槽...