事实上，人们可以了解到只有在集会上能够看到的动物。

In fact, people can learn about the animals they would never see except at the fair.

youdao

他花时间在工厂或者在该党忠实拥护者的集会上发表演讲。

He spends his time making speeches at factories or gatherings of the Party faithful.

《柯林斯英汉双解大词典》

在今天的示威集会上警察随处可见。

The police were much in evidence at today's demonstration.

《牛津词典》