One single sputum contains thousands upon thousands of germs and viruses. How many people in Beijing? How many viruses they are gonna produce? U do the maths!
一口痰就含有成千上万的细菌和病毒，北京有多少人？这些人得制造多少病毒和细菌？你自己算算吧。
One single sputum contains thousands upon thousands of germs and viruses. How many people in Beijing? How many viruses they are gonna produce? U do the maths!
一口痰就含有成千上万的细菌和病毒，北京有多少人？这些人得制造多少病毒和细菌？你自己算算吧。
应用推荐