今天（8月10号）去郑州取已经修好的Mac。 说起来Mac的屏幕损坏方式，我是万万没有想到的。7号中午那天，梓嫣溜进我的房间，想打开我的电脑。

夜里听雨 院中骤雨落，遥思远乡客。 何日再相见，莫使岁蹉跎。 2020年8月7日

夜雨寄北 唐·李商隐 君问归期未有期，巴山夜雨涨秋池。 何当共剪西窗烛，却话巴山夜雨时。

Massive Explosion Killed More Than 70, Injured Thousands in Beirut A massive explosion shook Beirut Tuesday, flattening much of the Lebanese capital’s port and damaging buildings across the city. The country’s health minister reported more than 70 people were killed and at least 3,000 others were injured. Officials expected the number of dead to

Managing Your Work, Your Child’s Work Online The coronavirus pandemic has changed many things about everyday life. One big change is childcare – or the lack of it. As many childcare providers（育儿机构） closed as part of public safety measures, so did schools, offices and businesses. Social restrictions also tightened. This meant many older adults were unable

前言 第一次接触PCA（Principal Component Analysis），在网上也搜索了很多资料。但是这些资料都有着很明显的特点：数学推导没问题，不能从

WHO: ‘There’s No Silver Bullet’ against COVID-19 The World Health Organization, or WHO, warned on Monday that there might never be a “silver bullet” or an extraordinary（特别的） solution

Study: Plastic Pollution Flowing into Oceans to Triple by 2040 The amount of plastic waste flowing into the ocean could triple in the next 20 years unless businesses and governments act to reduce plastic production. That warning comes from a new study that appeared recently in the publication Science. The study was carried out（执行，完成） by scientists and industry experts for The