n.脚步，脚步声...

n.谬误，谬见，谬论，错误...

Don't fall behind with your gas bill.不要拖欠煤气费.Don't fall behind with the rent, or you'll be evicted.不要逾期不缴房租, 否则会被逐出.Don't fall behind with your rent.不要拖欠房租....

A great disaster is befalling.灾祸临头....

fallibly的音标：fallibly的英式发音音标为：['fæləblɪ]fallibly的美式发音音标为：['fæləblɪ]...

a recent fall-off in sales近来销售量的减少One slip and you could fall off the building.脚下一滑就可能从建筑物上跌下去.When you are learning to ride a bicycle, you often fall off.初学骑自行车时, 常会从车上掉下来....

As we fall asleep the amplitude of brain waves slowly becomes greater.进入睡眠状态时，我们的脑电波振幅慢慢变大。After changing the bed, I would fall asleep quickly.换了床单，我很快就能睡着。He was wont to fall asleep after supper.他老是吃完晚饭就打盹。...

n.阵雨，降雨（rainfall的复数形式）...

n.着陆( landfall的名词复数 )...

After the storm she gathered a basketful of windfalls in the apple orchard.风暴过后,她从苹果园地上拣了满满一篮子苹果.Finance ministers must cope with shortfalls and windfalls.财长们必须应付援助金额不足以及出现意外之财的情况.We don't often have such windfalls....

fall into的音标：fall into的英式发音音标为：[fɔ:l 'ɪntuː]fall into的美式发音音标为：[fɔl 'ɪntu]...

n.下降，散开，分开...

fall in steps with的音标：...

v.不足，缺乏，达不到，不符合...

But, forward much make a move became the truth fallacious.但是, 真理向前多走一步就成了谬误.Don't be misled by the fallacious advertisement.不要被错误的广告所误导Don't be misled by the fallacious reasoning of the advertisement不要被错误的广告所误导...

n.放射性尘埃对海洋地区的污染...

求助于，依赖，转而依靠...

a shortfall in tax revenue税收收入不足There will soon be a shortfall in supply of qualified young people.合格年轻人才的短缺将很快出现.The move is designed to help offset the shortfall in world oil supplies caused by the UN embargo.此举旨在缓解联合国...

downfallen的音标：downfallen的英式发音音标为：['daʊn'fɔ:lən]downfallen的美式发音音标为：['daʊn'fɔlən]...

rainfall的音标：rainfall的英式发音音标为：['reɪnfɔ:l]rainfall的美式发音音标为：['renˌfɔl]...

The moon was casting a rainbow through the spray from the waterfall...月亮在瀑布溅起的水雾上照出了一道彩虹。As you descend, suddenly you see at last the hidden waterfall.一直往下走，最终你会突然看到那条隐秘的瀑布。The water roiled to his left as he climbed care...

She heard the priest's familiar, flat footfall on the staircase.她听到楼梯上传来牧师那熟悉的单调脚步声。The Rat's light footfall was presently heard approaching over the parched grass.突然干枯的草地上传来了老鼠轻快的脚步声.They sent a lot of policem...

n.（捕猎野兽用的）陷阱( pitfall的名词复数 )，意想不到的困难，易犯的错误...

v.降临到（某人）头上，发生( befall的过去分词 )...

n.冰布，冰崩，冰暴...

fallible的近义词/同义词有：errant, mortal, faulty, imperfect, unreliable, defective。adj.fallible的近义词（可能犯错的）：errant, mortal, faulty, imperfect, unreliable, defective。...

v.爱上，倾心...

fall by the wayside的音标：fall by the wayside的英式发音音标为：[fɔ:l bai ðə 'weɪˌsaɪd]fall by the wayside的美式发音音标为：[fɔl baɪ ði 'weˌsaɪd]...

Europe gave them away, which allowed polluters to make windfall profits.欧洲无偿发放配额, 结果却让排污企业赚得盆满钵满.Three hours later we are back in the kitchen hulling a heaping buggyload of windfall pecans.三小时后我们回到了厨房，开始给那满满一车风吹自落的山核桃去核。...

Fallopian tubes and ovaries are adnexa of the uterus.输卵管和卵巢是子宫的附属部分.Fallopian tube scarring can cause infertility and ectopic pregnancy.输卵管瘢痕化会引起不育和异位妊娠.Immediately below the fallopian tubes, the anterior and posterior p...