demonstration

This disaster is a clear demonstration of the need for tighter controls.

这场灾难清楚表明需要进一步加强控制。

The students are holding a demonstration against the proposed changes.

学生们举行游行示威，抗议提议中要进行的改变。

Huge crowds followed the funeral procession in a public demonstration of grief.

大批群众跟在葬礼队伍的后面，公开表达他们的悲痛。