Note that in MongoDB, my tickets collection did not need to be created beforehand.

请注意在MongoDB中，我的tickets集合无需提前创建。

youdao

To persist this document, I have to associate it with a collection, which is similar to a schema in relational terms. In Listing 5, I associate the ticket with a tickets collection.

要持久化此文档，我不得不将其与collection关联在一起，这类似于关系术语中的“模式”。

youdao

The find command without any parameters simply returns all documents in a particular collection, which in this case is named tickets.

不带任何参数的find命令简单地返回一个特定集合中的所有文档，在本例中名为tickets。

youdao

Tickets will go on sale in February 2009 and a new collection system will be put in place to try to stop tickets being sold on the black market.

BBC: Fans get World Cup ticket boost

This weekend the agency partially shut down operations, including ceasing its collection of federal excise taxes on airline tickets.

FORBES: Airlines Raise Fees As FAA Taxes Go Uncollected

But returning some of the smaller items like invitations and tickets is difficult because they aren't unique and it's hard to know from what collection the material was taken.

WSJ: National Archives discusses stolen documents case