One of the kids fell into the river.
小孩中有一个掉进了河里。
The houses fell away as we left the city.
随着我们离城市越来越远，房屋也逐渐在视线中消失了。
She fell back towards the end of the race.
赛跑快结束时她落后了。
She fell back on her usual excuse of having no time.
她以她惯用的办法推说没有时间。
Our plans fell through because of lack of money.
我们的计划由于缺钱而落空了。