Y2020W18，一周回顾

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#全球9个城市的空气污染显著下降# @Newsweek（美国有线电视新闻网） 为纪念“世界地球日”成立50周年，全球空气质量信息与技术公司IQAir于昨日发布了一则报告，研究了全球10座主要城市在疫情封锁期间的空气质量...... As the COVID-19 pandemic rages, with ongoing lockdown measures affecting millions of people around the globe, levels of air pollution are falling dramatically in many parts of the world... #苹果新警告影响iphone用户# @Forbes（福布斯） 苹果的系统一直都是号称安全、无病毒，即便被攻击，也不用担心。然而，最近苹果被爆出一个漏洞会导致5亿iPhone用户被黑客攻击，这个漏洞也存在于iPad中...... Apple has already released the best iPhone of 2020, but now millions of iPhone owners - both old and new - need to be careful because the compa ………………………………