Why 2021 in the vaccine push was so successful？ You never asked any questions; you just did what the TV in the mainstream media told you, that's the sad part 为什么2021年的疫苗推广如此成功？ 你从来没有问过任何问题；你只是按照电视上的主流媒体告诉你的做。这才是可悲的地方。