Please, just take 30 seconds, perhaps talk to your neighbor, and just figure out what should be the top priorities and the bottom priorities of the solutions that we have to the world's biggest issues.
请你试试，在三十秒之内，你可以和旁边的人商量， 想想哪些解决方法应该最优先进行， 用来解决世界上最严重的问题。