infrequent的反义词有：frequent, frequent。adj.infrequent的反义词（不经常的;罕见的）：frequent。infrequent的反义词（其他释义）：frequent。...

fraternize的第三人称单数（三单）为：fraternizes...

呋喃果糖苷...

"Frankly I found it rather frightening." — "A little startling," Mark agreed.“坦白说我觉得这相当可怕。”——“是有点吓人，”马克表示同意。Frankly, Thomas, this question of your loan is beginning to worry me.老实讲，托马斯，你贷款的问题开始让我担心了。The publicity-shy sin...

fructosuria的音标：fructosuria的英式发音音标为：[frʌktəs'jʊərɪə]fructosuria的美式发音音标为：[frʌktəs'jʊərɪr]...

Frisbee的音标：Frisbee的英式发音音标为：['frɪzbɪ]Frisbee的美式发音音标为：['frɪzbɪ]...

n.海滨，江边，装在火炉前部的热水缸...

Their relationship is never short on fun and frolic.他们在一起少不了欢乐和嬉戏。Tourists sunbathe and frolic in the ocean.游客晒着日光浴在海水里嬉戏。They had a frolic in the country.他们在乡村度过了一段欢乐的时光....

riffraff的音标：riffraff的英式发音音标为：['rɪfræf]riffraff的美式发音音标为：['rɪfˌræf]...

refrained的音标：...

n.（政治性选举的）选举权，投票权( suffrage的名词复数 )...

frenzy的音标：frenzy的英式发音音标为：['frenzi]frenzy的美式发音音标为：['frɛnzi]...

upfront的音标：upfront的英式发音音标为：[ˌʌp'frʌnt]upfront的美式发音音标为：['ʌp'frʌnt]...

n.前面( front的名词复数 )，前线，一面，幌子...

frazzles的音标：...

frottage的音标：frottage的英式发音音标为：['frɒtɪdʒ]frottage的美式发音音标为：['frɒtɪdʒ]...

African American的音标：...

The fragile economies of several southern African nations could be irreparably damaged...一些南非国家的脆弱经济可能会被彻底破坏，无法挽回。The African National Congress insists on a one-man, one-vote system.非洲国民大会坚持实行一人一票的制度。He suspected element...

refreshes的音标：...

affronts的音标：...

airfreight的音标：airfreight的英式发音音标为：['eəfreɪt]airfreight的美式发音音标为：['erfreɪt]...

Check seals on fridges and freezers regularly.定期检查冰箱和冷冻柜的密封装置。They have a huge selection of perfect, slightly imperfect and discontinued cookers, fridges and so on.他们有大量完好的、略有瑕疵的以及已停产的炊具、冰箱和其他货品可供选择。Television, cars, air...

freckly的音标：freckly的英式发音音标为：['freklɪ]freckly的美式发音音标为：['freklɪ]...

froth的现在进行时为：frothing...

frivol的现在完成时为：frivoled...

n.同病相怜，共济会的组织会员...

The boat was rocking gently to and fro in the water.小船在水中轻轻地来回摇荡。Dark shadows moved across the window as some eavesdroppers strolled to and fro outside.窗外移过几个黑影,有人在外边徘徊,偷听他们的谈话.Trucks and cars shuttling and fro on the hi...

n.果糖苷...

freedoms的音标：...

African的音标：African的英式发音音标为：['æfrɪkən]African的美式发音音标为：['æfrɪkən]...