faker，pinchbeck，pretender，[法] imitation brand goods，[电影]Schtonk!；
[例句] 他急于剔除那些他认为是冒牌货的申请人。 He is keen to weed out the many applicants he believes may be frauds.
[例句] 那家伙是个彻彻底底的冒牌货, 他冒称是个博士. That man is a total phony, he palms himself off as a Ph . d.
fan，flap，instigate，incite ；
[例句] 他伸出舌头，鼻翼扇动着。 He stuck out his tongue and flared his nostrils.
[例句] 这场暴乱是在某政客的扇动下发生的. The riot broke out at the instigation of a certain politician.
go a step further，further，make further efforts，more ；
[例句] 这儿的医疗体制使问题进一步恶化。 The problem is compounded by the medical system here.
[例句] 她保留了许多副本以便作进一步的注解。 She retained a number of copies for further annotation.
fasten，fast，fasten up ；
[例句] 窗户都关紧了，百叶窗都拉下了，门也闩上了。 The windows were closed and shuttered, the door was barred.
[例句] 睡觉时不要将所有的窗户都关紧. Do not fasten all the windows up while you sleep.
fat meat，speck，fat ；
[例句] 她胳膊下侧有一层肥肉一颤一颤的。 A roll of fat jiggled on the underside of her arm.
[例句] 肉贩建议先把肉整个儿煮熟，然后再将肥肉切去。 Butchers recommend cooking meat with the fat and trimming it away later.
ferroalloy，iron alloy ；
[例句] 幸而, 目下已有兼备高磁导率和低磁导率损耗的铁和铁合金,可资利用. Fortunately, iron or iron alloys are available which combine high permeability with small hysteresis loss.
[例句] 铁合金是炼钢的重要和不可缺少的原材料之一. Ferrous alloy is one of important and indispensable raw materials of steelmaking.
[冶] ferromanganese，ferromanganese iron ；
[例句] 硅锰 、 硅铁 、 铬锰 、 锰铁等铁合金产品. Guimeng , electric, chromium manganese, ferro - alloys such as ferromanganese products.
[例句] 深入地探讨了锰铁高炉水淬矿渣的利用. The utilization of water quenched slag ferromanganese blast furnace is discussed.
[农] fertility (of soil) ；
[例句] 传统的刀耕火种农业方式耗尽了土地的肥力。 Traditional slash and burn farming methods have exhausted the soil.
[例句] 为保持土壤肥力,农民搞作物轮作. Farmers rotate their crops so that the soil will remain fertile.
an impression of the hand，handprint，fingerprint，thumbprint ；
[例句] 他用按手印替代签字. He used an inked thumbprint in lieu of signature.
[例句] 你怎么解释那边上靠墙的半个手印? How do you explain a handprint half covered by a wall?
flare，blaze，flame，the light or glow of fire，firelight ；
[例句] 透过船舱的窗户我看到了闪烁的火光。 Looking through the cabin window I saw the flicker of flames.
[例句] 火光中他头上闪着汗珠。 In the firelight his head gleamed with sweat.
fish spear，fishgig，fish fork，harpoon，gig ；
[例句] 他们试图把鱼叉刺进鳐鱼体内，以防它猛摆那蜇人的尾巴报复。 They tried to get the harpoon into the ray before the sting tail came lashing over to retaliate.
[例句] 这支鱼叉可能就是凶器。 The spear is presumably the murder weapon.
theatrical company，opera troupe，troupe ；
[例句] 这家剧团上演了一出讲述无家可归者的戏。 The company put on a play about the homeless.
[例句] 她现年87岁，曾经是齐格菲尔时事讽刺剧团的成员之一。 She's 87 years old, and a one-time member of the Ziegfeld Follies.
lint，flannelette，charpie，motarium ；
[例句] 用干净的湿绒布擦去多余的化妆品。 Wipe off any excess make-up with a clean, moist cotton flannel.
[例句] 我把天鹅绒布弄皱了。 I wrinkled the velvet.
flight，fleet (away)，pass away swiftly，fly ；
[例句] 开心的时光总是飞逝而去。 Time flies when you're having fun.
[例句] 光阴飞逝,推陈出新. Time passes and the old gives place to the new.
provoke，stir up，tar on，concitation，dare ；
[例句] 格雷戈里会采访他们，并会挑动他们彼此相斗。 Gregory would interview them, and would play one off against the other.
[例句] 他挑动那两个少年争吵. He instigated the two boys to quarrel.
[医] fontanel，fonticuli cranii，fonticulus ；
[例句] 他眼下更关心的是,这么晚去找泽?咛囟?有失体统. Now, he was more concerned about the impropriety of visiting Zeftel at this hour.
[例句] 掌 击法 常用于头顶前囟与百会. Palm - hitting , the anterior fontanelle of the vertex and Baihui.
foothold，an anchor point，standpoint，stand ；
[例句] 扩大内需是我国经济发展 长期 的、基本的立足点. Stimulating domestic demand is an essential and long - standing factor underlying China's economic growth.
[例句] 这样我们在那个市场会有立足点了. It'll give us a foothold in that market.
footwall，heading side，heading wall，lower plate ；
[例句] 现在来下盘棋好 吗 ? How about playing a game of chess now?
[例句] 我要求同他下盘棋. I challenged him to a game of chess.
for，for the sake of，in order to，by way of，in the interest of ；
[例句] 我们活着是为了什么？不就是给邻居当笑柄，再反过来笑他们。 For what do we live, but to make sport for our neighbours, and laugh at them in our turn?
[例句] 为了摆脱媒体的关注，这对新人在加勒比喜结连理。 The couple married in the Caribbean to avoid a media circus.
propodeum，propodium，propodeon，propes ；
[例句] 鼹鼠的前足非常有力，擅长挖洞。 Moles have powerful forefeet for digging.
[例句] 所有病人都作了前足的选择性骨手术. All patients underwent an elective osseous surgical procedure on the forefoot.