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。
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。
SAW pressure sensor is a new type digital sensor, and it's application of engineering is a hot topic now.
SAW压力传感器是一种新型的准数字化传感器，其工程实用化是近年来研究的一个热点。
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