这个科学家的fellowships定期举办研讨会，分享最新研究成果。

The scientist's ___fellowships hold regular seminars to share the latest research findings.

他获得了研究奖学金，可以在欧洲进行一年的学术研究。

He received a ___fellowship to conduct academic research in Europe for one year.

在志愿者活动中，我们建立了深厚的友谊和团结精神。

During the volunteer work, we built deep ___fellowships and solidarity.