这个偏远地区的居民从井里打水用于日常生活。

People in this remote area draw water from ___wells for daily use.

这位老教授是我们研究团队的智慧源泉。

The old professor is a ___wellspring of wisdom for our research team.

听到这个好消息，喜悦之情涌上心头。

Happiness ___welled up in her heart when she heard the good news.