This is the 5539th most frequent Chinese word.
共用
"To share or use jointly."
In this sentence, '共用' is used to denote the sharing of a physical space or resource by multiple parties.
我们共用这间办公室。
We share this office.
Here, '共用' describes the shared utilization of a single service among all family members.
这条宽带是全家共用的。
This broadband connection is shared by the whole family.
In this case, '共用' refers to the accessible shared use of library resources intended for students.