hěnduō shèqū fúwù bù shì yī jù huà wánchéng de,ér shì yī chuàn shēngyīn:dī,kā,dīng很多社区服务不是一句话完成的,而是一串声音:嘀,咔,叮。A lot of community services don’t wrap up in one sentence but in a string of sounds—beep, click, ding.