This is because Zunyi Tongzi Xishi Town is located in Tongzi County, Zunyi City, Guizhou Province, and Chongqing is a municipality directly under the central government, which has a certain geographical distance from Guizhou. Therefore, Xishi Town, Tongzi, Zunyi can't belong to Chongqing.
The practical solution is to determine the location and ownership of Xishi Town, Tongzi, Zunyi by inquiring relevant information. Relevant information can be obtained through Internet search and map consultation.
It is worth noting that geographical location and administrative attribution are two different concepts. Although Xishi Town in Tongzi, Zunyi does not belong to Chongqing, it may have certain economic and cultural ties and exchanges with Chongqing. When doing relevant research or understanding, it is necessary to clarify these differences and avoid confusion and mistakes.
To sum up, Xishi Town, Tongzi, Zunyi did not belong to Chongqing before, because of its geographical location and administrative ownership. When obtaining relevant information, we need to pay attention to the differences between different concepts to ensure accuracy and completeness.