All the people in a group, thought of as one unit, especially when they have the same ideas or aims.
The collectivity of the residents decided to plant more trees in the park.
居民的集体决定在公园里种更多的树。
When something is shared or owned by a group, not just one person.
The collectivity of the land meant that everyone had a say in how it was used.
土地的共有意味着每个人都有权决定它的使用方式。