该用户为主标题选择了粗体，为子标题选择了粗体加斜体。
This user has chosen bold formatting for a main heading and bold plus italics for a sub-heading.
通过对要搜索的标题进行随机选择，可以提高测试的稳健性。
You can improve the robustness of your test by randomizing the selection of titles to search.
您可以快速扫描标题或选择一个去看它的摘录，故事源或一组相关主题列表。
You can quickly scan the headlines or select one to see an excerpt, the source of the story or a list of related topics.
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