本周，一系列虚假炸弹威胁加剧了欧洲空域的紧张情绪。以下是需要了解的情况。
A series of hoax bomb threats this week has added to anxiety in Europe’s skies. Here’s what to know.
官员表示，周四被针对的二十多架飞机均已安全降落，此前本周早些时候也发生过类似威胁。这些虚假威胁加剧了该地区对空域的焦虑。
More than two dozen planes that were targeted on Thursday landed safely, officials said, after similar threats earlier this week. The hoaxes have added to airspace anxiety in the region.