Because the only way we can actually find out how many children were vaccinated in the country of Indonesia, what percentage were vaccinated, is actually not on the Internet, but by going out and knocking on doors, sometimes tens of thousands of doors.
因为实际上这是我们唯一的方法，为了知道 在印尼乡下有多少孩子注射过疫苗， 注射过疫苗的百分比，实际上 不在网络上，而是通过去挨家挨户地敲门， 有时候是成千上万的门。