Fallan法兰
fallv.落下;倒下;来临n.秋天;落下;瀑布
falling out of hair毛发脱落
fall on one's knees跪下
falling liquid film降膜
fall-planted beet秋播甜菜
fallopian lieaments[医] 子宫圆韧带(子宫腹股沟索)
fall in water level水位下降
fall to one's knees固定装置
fallen in love withv.爱上(喜爱)
fall-back circuit备用电路
fall run foul of onvt.相撞与