Tiny house community, curbside recycling program, nuclear power plant or personal computer store.

小房子社区，路边回收项目，核电站还是个人电脑商店？

Communities quickly adopted the practice and by 2014, 80% of all curbside recycling programs in the US were single stream.

各个社区很快都开始采用这一做法，直到2014年，在美国，80%的路边回收计划都是单流制的。