to become smaller in size or amount, or fewer in number减小;降低;减少
The community has dwindled to a tenth of its former size in the last two years.该社区在过去的两年里缩小到了原来的1/10。
Her hopes of success in the race dwindled last night as the weather became worse.随着昨晚天气的恶化,她在比赛中获胜的希望减小了。