Underneath that there are a series of topic names, such as gossip, technology, and so on, each of which points to a discussion thread.

该节点之下有一系列主题名称，例如闲谈、技术等等，每个主题名称指向某个讨论线程。

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His blue eyes widened behind his glasses as he moved to the topic of thread.

当说到线的问题时，他镜片后的蓝眼睛睁大了。

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Back in Listing 2, you saw each background thread receive and print the results of retrieving tweets for a particular topic.

在清单2中，您看到每个后台线程接收和打印检索特定主题tweets的结果。

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