短語詞組短語fall asleep in 睡在;在入睡;入睡fall madly in love 墜入愛河fall behind in study 在學習上落后fall l in with 偶爾遇到;同意;符合;碰見Fall Deeply In Love 才下眉頭fall off in illumination 照度衰減fall behind in 在;翻譯fall drop in series 梯級跌水fall behind in sth 前幾個月產量下降了 返回 fall in