是fall的過去式。
v. 落下跌倒下垂跪下（地面）向下傾斜（數量等的）減少 （雨或雪） 降落淪陷 陣亡進入（某狀態）突然來到
n. 落下跌倒（雪、巖石等的）降落（數量等的）減少秋季垮台、衰敗Spots of rain had begun to fall.
雨點已經開始落下來了。
Aren't you afraid (that) you'll fall?
你不怕會跌倒嗎
Output will fall by 6%.
產量將下降6%。
He was terrified (that) he would fall.
他很害怕會跌倒。
She broke her right leg in a bad fall.
她在一次嚴重的跌倒中右腿骨折了。
