adv.首先，第一，主要，尤其adj.领袖（般）的...

The timbers groan and creak and the floorboards shift.这些木头在吱吱嘎嘎作响，木地板有些摇晃。The rats skittered around them in the drains and under the floorboards.无论是下水道里，还是地板下面，都有许多耗子绕着它们蹿来蹿去。Screw down any loose floorboards.用螺钉固定住所有松动的地...

fly的复数形式为：flies...

adj.[医]（水）平扁的，弄平的v.变平，使（某物）变平( flatten的过去式和过去分词 )，彻底打败某人，使丢脸，停止增长（或上升），（把身体或身体部位）紧贴…...

Building regulations have been habitually flouted.建筑法规一向都无人遵守。At least 35 manufacturers have flouted a law requiring prompt reporting of such malfunctions.至少有35名制造商触犯了要求此类故障出现后立即上报的法律。North Vietnam flouted the accords fr...

fluting的音标：fluting的英式发音音标为：['flu:tɪŋ]fluting的美式发音音标为：['flutɪŋ]...

For most of our history we were isolationist. For two fleeting decades we were predominant.在过去相当长的时期内,我们一直奉行孤立主义, 当然也曾有过短暂的20年居于世界的支配地位.Art is long,and time is fleeting.时光飞逝,学艺无穷。She wondered for a fleeting moment if he ...

flotilla的音标：flotilla的英式发音音标为：[flə'tɪlə]flotilla的美式发音音标为：[floʊ'tɪlə]...

The poison secreted by the gallfly produces monstrous growths on the wild ro se or oaktree.瘿蜂所分泌的毒汁能使野玫瑰或像树产生畸形生长....

Does AK work well with flashcard in slot 2?AK能和slot2的烧录卡联动 吗 ?...

ObjectiveTo measure cortical areas involved ankle dorsiflexion and planter flexion.目的检测参与踝关节背屈和跖屈运动的脑区.Maintains feet in dorsiflexion. Reduces risk of foot - drop.保持病人双脚处背曲位,减少足下垂.Photoelastic experiment was used to stud...

n.应用流体学...

fluormica的音标：fluormica的英式发音音标为：[f'lʊəmɪkə]fluormica的美式发音音标为：[f'lʊrmɪkə]...

Marconaflo的音标：...

n.富裕，富足...

组织液...

v.隐蔽( camouflage的过去式和过去分词 )，掩盖，伪装，掩饰...

He was flipping through a magazine in the living room.他在起居室里翻看着杂志。I even washed the flipping bed sheets yesterday.我昨天甚至把那些可恶的床单给洗了。This is such a flipping horrible picture.这张照片真是难看得要死。...

fluorogen的音标：fluorogen的英式发音音标为：['flu:ərədʒən]fluorogen的美式发音音标为：['fluərədʒən]...

fluff的第三人称单数（三单）为：fluffs...

二氟化的...

waffled的音标：...

All year she has fluctuated between optimism and despair.全年当中她时而乐观,时而消沉.Her family had of late exceedingly fluctuated.她家里最近连起风波.His feelings fluctuated between excitement and fear.他的心情变化不定,有时激动,有时害怕....

A trickle of refugees began to flee the country.难民开始三五成群地陆续逃离该国。For an instant, Catherine was tempted to flee.有那么一会儿，凯瑟琳很想逃跑。Many refugees have been forced to flee their homeland.很多难民被迫逃离了祖国。...

flagellums的音标：...

stifle的现在完成时为：stifled...

flop的现在进行时为：flopping...

flusters的音标：...

flinch的音标：flinch的英式发音音标为：[flɪntʃ]flinch的美式发音音标为：[flɪntʃ]...

Rivers and streams have overflowed their banks in countless places.在许多地方，河流与小溪都已经决堤。Ridley's anger finally overflowed.里德利终于按捺不住满腔的怒火。Plates overflowed with party food.聚会上的食物碟满盘盈。...