https://www.mongodb.com/zh-cn/docs/drivers/csharp/upcoming/aggregation/
Aggregation Operations - C#/.NET Driver - MongoDB Docs
aggregation operationsc netdrivermongodbdocs
https://www.mongodb.com/ja-jp/docs/mongoid/upcoming/interact-data/aggregation/
Aggregation Operations - Mongoid - MongoDB Docs
aggregation operationsmongodbdocs
https://www.mongodb.com/docs/manual/aggregation/?ref=blog.ippon.fr
Aggregation Operations - Database Manual - MongoDB Docs
Aggregation operations process multiple documents and return computed results.
aggregation operationsdatabasemanualmongodbdocs