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。

youdao

First of all, My heart is so heavy when I saw the topic of today! I have a bad mood all the day!

首先，当我看到这个话题时，心情是非常沉重的。一整天下来，我的心情都处于一种不好的状态！

youdao

Many teen retailers saw a drop in sales last month, including Hot Topic Inc. and The Wet Seal inc.

多家青少年用品零售商上个月销售额有所下滑，其中包括Hot Topic公司和The Wet Seal公司。

youdao

At this time Mr Li saw a report about corruption on a provincial television channel state media routinely attack local corruption, a safe topic to criticise as long as it is not linked to more senior officials.

ECONOMIST: Rural activism