n.系带切开术...

Alexander is a member of the medical fraternity.亚历山大在医务界工作.Bob needs the fraternity of others who share his mission.鲍勃需要与他共同肩负这项使命的其他人的友爱互助。You're glad to be a member of this new water fraternity.你也会为自己能成为这个新兴的水上运动俱...

friend的复数形式为：friends...

frenzying的音标：...

Six 10000 - ton freighters can berth at this dock.6艘万吨货轮可以同时在这个码头停靠.The harbour admits large tankers and freighters.这个港口容得下巨型油船和货轮.Half - empty freighters are just one sign of a worldwide collapse in manufacturing.半满的货船只...

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

froth的第三人称单数（三单）为：froths...

She read everything, digesting every fragment of news.她什么都看，对新闻的每个片段都细细品味。But that fragment of talk lodged , thick, in his small gizzard.可是谈话的片断却深深盘据在他的小头脑里面.A free radical is a molecular fragment having an unpaired elec...

冻附，冻硬...

frontonasal的音标：frontonasal的英式发音音标为：[f'rʌntəʊnəsl]frontonasal的美式发音音标为：[f'rʌntoʊnəsl]...

Infrasonic observations of open ocean swells in the Pacific: Deciphering the song of the sea.在太平洋里大洋涌(长浪)次声观测: 译解海地歌曲.Another haunted and related natural phenomenon is known as frequency infrasonic sound waves.另一种与闹鬼相关的自...

infrahuman的音标：infrahuman的英式发音音标为：[ˌɪnfrə'hju:mən]infrahuman的美式发音音标为：[ˌɪnfrə'hjumən]...

Behind his cool exterior lurks a reckless and frustrated person.在冷酷的外表背后，他是一个鲁莽又不得志的人。He was frustrated by deep poverty.他因赤贫而灰心丧气。Children can get frustrated when they are unable to achieve realism in their drawings.如果孩子...

adv.脆弱地，不坚实地...

midfrequency的音标：midfrequency的英式发音音标为：[mɪdf'ri:kwənsɪ]midfrequency的美式发音音标为：[mɪdf'rikwənsɪ]...

Thus the crisis punishes the frugal more than the profligate.如此看来,危机对节俭者的惩罚,要比对恣意挥霍者更为严厉.We’re planning a frugal Christmas.我们正计划过一个花钱少的圣诞节。The family sat down to table, and a frugal meal of cold viands was deposited befo...

More and more women are wearing men's fragrances.越来越多的女士用男士香水。The bath oil comes in various fragrances.这种沐浴油有不同的香味。This toilet soap lathers so nicely and has several fragrances.这种香皂起泡很多,并且有好几种香味....

氟乙酸钠...

frolicked的音标：...

v.使卷缩，使（卷曲），炸得吱吱响( frizzle的现在分词 )...

doorframe的音标：doorframe的英式发音音标为：['dɔ:freɪm]doorframe的美式发音音标为：['dɔˌfreɪm]...

I can't draw very well freehand.我徒手画画得不很好.It was a freehand sketch.那是一张手画的图样....freehand sketches.徒手素描Use a template or stencil or simply do it freehand.使用样板或模版，或者干脆徒手画。...

n.果镰刀菌素...

infrastructure的复数形式为：infrastructures...

A thorough brushing helps to freshen up your mouth.彻底刷牙有助于口气清新。My room needed a lick of paint to freshen it up.我的房间只要刷一点油漆就能焕然一新。A coat of paint will freshen this room up.刷一层油漆会使房间焕然一新....

frp的音标：...

suffrages的音标：...

freelancers的音标：freelancers的英式发音音标为：[f'ri:lɑ:nsəz]freelancers的美式发音音标为：[f'rilɑnsəz]...

frankness的音标：frankness的英式发音音标为：[fræŋknəs]frankness的美式发音音标为：['fræŋknɪs]...

irrefrangible的音标：irrefrangible的英式发音音标为：[ˌɪrɪ'frændʒɪbl]irrefrangible的美式发音音标为：[ˌɪrɪ'frændʒəbəl]...