fructify的现在完成时为：fructified...

Education, quite rightly, is currently at the forefront of the political agenda.目前教育被排在政治议程的首位，这样做非常恰当。His team are at the forefront of scientific research into vaccines.他的小组处于疫苗科研的最前沿.The pension issue was not at the fo...

refrain的一般过去时为：refrained...

He was replaced by Lt Frank Fraser.他被弗兰克·弗雷泽中尉顶替。George Fraser was clearly a good soldier, calm and resilient...乔治·弗雷泽显然是个好士兵，沉着冷静且适应力强。Lord Fraser's speech offers much food for thought...弗雷泽勋爵的讲演发人深省。Fraser did not...

learn from的音标：learn from的英式发音音标为：[lə:n frɔm]learn from的美式发音音标为：[lɚn frʌm]...

frankly的音标：frankly的英式发音音标为：['fræŋkli]frankly的美式发音音标为：['fræŋkli]...

v.使不成功( frustrate的第三人称单数 )，挫败，使受挫折，令人沮丧...

Flipper? Maybe those frisky crowd - pleasers at the aquarium?鳍状肢? 或许是水族馆中那些活泼逗人的生物?I felt frisky, as if I might break into a dance.我感到很欢快, 似乎要跳起舞来.His horse was feeling frisky, and he had to hold the reins tightly.马儿欢蹦乱跳...

frosty的音标：frosty的英式发音音标为：['frɒsti]frosty的美式发音音标为：['frɔsti]...

fresh的比较级为：fresher...

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

freeze的现在完成时为：frozen...

adj.卷曲的...

n.从文件中读；从文件读二进制数据...

friend的一般过去时为：friended...

In 1986, it limited its franking budget to half the total appropriation for both chambers.1986年把参院的免费邮件预算限制在参众两院该项预算总和的半数.In 1986 , it limited its franking budget to half the total appropriation for both chambers.臧巡卧旱拿夥延...

affront的一般过去时为：affronted...

n.〈美俚〉非洲发型= Afro（fro的复数形式）...

n.分数( fraction的名词复数 )，小部分，分裂，[化学]（分）馏（部）分...

befriend的音标：befriend的英式发音音标为：[bɪ'frend]befriend的美式发音音标为：[bɪ'frɛnd]...

（使）不接近，避开，远...

They had stopped by a spring to refresh themselves.他们曾在一处泉边停歇休息。Allow me to refresh your memory.让我帮你回忆吧。I looked at the map to refresh my memory of the road.我看看地图以唤起对这条路的回忆....

It is infrequence in China that the weld high - temperature high - pressure hydrogenation pipe is cracked short time.高温高压 临氢管道焊缝迅速发生裂纹,国内罕见....

frailty的复数形式为：frailties...

frizzle的一般过去时为：frizzled...

infringement的复数形式为：infringements...

A friend that frowns is better than a smiling enemy.朋友向你皱眉胜过敌人向你微笑.An ancient pagoda frowns on the mountainside.一座古塔阴森森地矗立在山腰上.Sumner would greet us with frowns and grimaces, doing his best to express wordless disapprova...

adj.内折的，内弯的v.违反，侵害( infract的过去式和过去分词 )...

adj.冰冻的，不热情的...

He was criticized for his infraction of the discipline.他因违反纪律而受到了批评。When infraction or perisplenitis occurs, however, pain in the region of the spleen may be intense.然而, 若发生梗塞或脾周围炎, 则脾区疼痛可加剧.Therefore, in our case, escap...