几位讲师加入游行，以示与学生的团结。

Several lecturers joined the march to show ___solidarity with their students.

社区活动促进了不同群体之间的强烈团结感。

The community event promoted a strong sense of ___solidarity among diverse groups.

国际团结对于应对气候变化等全球挑战至关重要。

International ___solidarity is vital for addressing global challenges like climate change.