In the twentieth century, it seems, any country that doesn't have problems with trash can't be considered an advanced country, but any country that can't find a way to solve those problems doesn't deserve to be called advanced, either.
廿世紀，不為垃圾煩惱的國家，好像不算進步的國家；但若不能解決垃圾帶來的煩惱，似乎也不配稱為進步的國家。