refresh的现在进行时为：refreshing...

adj.焦躁的，附有弦马的，腐蚀的v.（使某人）不愉快，烦躁( fret的过去式和过去分词 )，磨损，咬坏，以刻出的或锯出的图案装饰...

stir-fry的现在完成时为：stir-fried...

fray的现在进行时为：fraying...

Essentially fractures can cut most types of carbonate fabric.实质上裂缝可割切大多数类型的碳酸盐组织.Fractures of the nose may be associated with septal tractures and hematomas.鼻骨骨折可伴有中隔骨折和血肿.Fractures often impose a greater need for strict...

vt.（用手）搜（某人）的身vi.（动物）活蹦乱跳...

freckle的复数形式为：freckles...

free的第三人称单数（三单）为：frees...

fruit的第三人称单数（三单）为：fruits...

Soldiers who fraternize with the enemy will be punished.亲敌的士兵将受到惩罚.He combined consummate shrewdness with the disposition superficially to fraternize.他把高度的精明和温和敦厚的外表结合了起来.Soldiers were forbidden to fraternize with the lo...

enfranchise的一般过去时为：enfranchised...

A moted of the nondestructive examination for the autofrettage residual stresses is introduced , in this paper.介绍了一种自增强残余应力无损检测的方法....

n.自由保有，不动产...

The sea froths over my feet...海水在我的脚上泛起泡沫。The sea froths over my feet.海水在我的脚上泛起泡沫。'No! No! Never!' he froths...“不！不！绝不!”他气得口吐白沫。Beer froths when it is poured out.啤酒倒出时会起泡沫."No! No! Never!" he froths.“不！不！绝不!”他气...

The electronic addressed liquid crystal display forms different diffractive optical elements.该电寻址液晶显示器可形成不同的衍射光学元件.The diffractive efficiency is measured and the errors are analyzed.测量了菲涅耳透镜的衍射效率并分析产生误差的原因.These errors h...

Carbofrax used as the chill material for casting may make casting obtain compact and wear - resistant structure.碳化硅作为铸铁件激冷材料,可以使铸件获得致密而 耐磨 的组织....

fragment的第三人称单数（三单）为：fragments...

infract的音标：infract的英式发音音标为：[ɪn'frækt]infract的美式发音音标为：[ɪn'frækt]...

fructify的音标：fructify的英式发音音标为：['frʌktɪfaɪ]fructify的美式发音音标为：['frʌktəˌfaɪ, 'frʊk-]...

Unfortunately the portraits were frauds.不幸的是这些肖像都是骗人的。The frauds have been unearthed by investigators working for the Camden and Islington Health Authority.这些欺诈行为已被卡姆登和伊斯灵顿卫生局的调查人员揭露了出来。He is keen to weed out the many ap...

It was just a piece of harmless frivolity.这仅是无恶意的愚蠢行为。Hedonism and frivolity will diffuse hell tnrough all our days.享乐主义和轻薄浮佻会将地狱扩展到我们的整个日子之中.How could she tolerate the men's frivolity?她怎能忍受得了那男人的轻浮?...

Frenchwoman的音标：Frenchwoman的英式发音音标为：['frentʃwʊmən]Frenchwoman的美式发音音标为：['frɛntʃˌwʊmən]...

refrigerate的音标：refrigerate的英式发音音标为：[rɪ'frɪdʒəreɪt]refrigerate的美式发音音标为：[rɪ'frɪdʒəˌret]...

frequency的复数形式为：frequencies...

n.杂凑，搀杂...

fraternizes的音标：...

freshman的音标：freshman的英式发音音标为：['freʃmən]freshman的美式发音音标为：['frɛʃmən]...

gyrofrequency的音标：gyrofrequency的英式发音音标为：['dʒaɪərəʊfri:kwənsɪ]gyrofrequency的美式发音音标为：['dʒaɪəroʊfrikwənsɪ]...

n.红锰铁矿...

frisk的现在完成时为：frisked...