fraudulent ADJ. / 欺骗的/cheating; deceitful. The government seeks to prevent fraudulent and misleading advertising. fraught ADJ. /满的/filled. Since this enterprise is fraught with danger, I will ask for volunteers who are willing to assume the risks.
fray N. /争吵/brawl. The three muskete ers were in the thick of the fray.
frenetic ADJ. /发狂的/frenzied; frantic. His frenetic activities convinced us that he had no organized plan of operation. frenzied ADJ. /狂乱的/madly excited. As soon as they smelled smoke, the frenzied animals milled about in their cages. fresco N. /壁画/painting on plaster (usually fresh). The cathedral is visited by many tourists who wish to admire the
frescoes by Giotto.
fret V. /被激怒/to be annoyed or vexed. To fret over your poor grades is foolish; instead, decide to work harder in the future. friction N. /摩擦/clash in opinion; rubbing against. At this time when harmony is essential, we cannot afford to have any friction in our group.
frigid ADJ. /刺骨寒/intensely cold. Alaska is in the frigid zone.
frivolous ADJ. /轻佻的;嬉皮笑脸的/lacking in seriousness; self-indulgently carefree; relatively unimportant. Though
Nancy enjoyed Bill's frivolous, lighthearted companionship, she sometimes wondered whether he could ever be serious. frivolity, N.
frolicsome ADJ. /闹着玩的;嬉戏的/prankish; gay. The frolicsome puppy tried to lick the face of its master.
frond N. /棕榈叶;蕨叶/fern leaf; palm or banana leaf. After the storm the beach was littered with the fronds of palm trees.
frugality N. /俭省节约/thrift; economy. In economically hard times, anyone who doesn't learn to practice frugality risks bankruptcy. frugal, ADJ.
fruition N. / 享用; 成就; 实现/bearing of fruit; fulfillment; realization. This building marks the fruition of all our aspirations and years of hard work.
frustrate V. /阻碍;挫败/thwart; defeat. We must frustrate this dictator's plan to seize control of the government.
fugitive ADJ. /短暂的，易变的;流动的/fleeting or transitory; roving. The film brought a few fugitive images to her mind, but on the whole it made no lasting impression upon her.
fulcrum N. /(杠杆的)支点/support on which a lever rests. If we use this stone as a fulcrum and the crowbar as a lever, we may be able to move this boulder.
fulsome ADJ. /过分的/disgustingly excessive. His fulsome praise of the dictator revolted his listeners.
fundamental V. /基本的，基础的/basic; primary; essential. The committee discussed all sorts of side issues without ever getting down to addressing the fundamental problem.
furlough N. /休假/leave of absence; vacation granted a soldier or civil servant. Dreaming of her loved ones back in the States, the young soldier could hardly wait for her upcoming furlough.
furor N. /非常激动/frenzy; great excitement. The story of her embezzlement of the funds created a furor on the Stock Exchange.
furtive ADJ. /隐秘的;偷偷摸摸，鬼祟/stealthy; sneaky. Noticing the furtive glance the customer gave the diamond bracelet on the counter, the jeweler wondered whether he had a potential shoplifter on his hands.
fusion N. /熔合;熔接/union; coalition. The opponents of the political party in power organized a fusion of disgruntled groups and became an important element in the election.
futile ADJ. /没出息;无望，没效果的/useless; hopeless; ineffectual. It is futile for me to try to get any work done around here while the telephone is ringing every thirty seconds. futility, N.
gadfly N. /牛蝇;招人烦的人/animal-biting fly; an irritating person. Like a gadfly, he irritated all the guests at the hotel; within forty-eight hours, everyone regarded him as an annoying busybody.
gaffe N. /失态;出丑/social blunder. According to Miss Manners, to call your husband by your lover's name is worse than a mere gaffe; it is a tactical mistake.