fall 英[fɔ:l] 美[fɔl] v. 跌倒; 落下; 减少; 沦陷; n. 秋天; 落下; 瀑布; 减少; [例句]Totally exhausted, he tore his clothes off and fell into bed他疲惫至极,扯下衣服,一头倒在床上。[其他] 第三人称单数:falls 现在分词:falling 过去式:fell 过去分词:fallen