捐血

• Could Covid-19 Cause Your Teeth to Fall Out? – The New York Times
• How to Be a Good Guest When Visiting Your Children

• Tech-Savvy Scammers Exploit Public Wi-Fi Security Gaps
• They Beat Back the Virus (Again and Again and Again) – The New York Times
• The Coronavirus Won’t Stop Evolving When the Vaccine Arrives – The New York Times

時間：五分十九秒。

聽說五分鐘結束是很難的一件事。

這次也是滿第八加侖的捐血。