For humans, 2020 is a very “funeral” year: forest fires, floods, locusts, and the well-known American astronomer Tyson predicted that an Apollo asteroid (2018VP1) will…

　　”Don’t understand going to work – my time is very valuable, but it’s all being procured by my boss at wholesale prices.” 　　”Don’t understand WeChat…

　　 The epidemic plunged humanity into unprecedented turmoil and anxiety. This natural disaster was like an uninvited guest who ventured in, and its historical impact,…