最近几天东京的AQI只有10左右甚至是个位数，空气像水晶一样透明，仅此一项就觉得移民值了。
#东行漫记 https://twitter.com/felixding/status/1112867514537566208
https://t.me/noteToQoto/32
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
