100:01:33,459 --> 00:01:37,209一九四九至一九五三年间200:01:37,209 --> 00:01:41,417有两百万难民由中国进入香港300:01:41,542 --> 00:01:44,667令到香港人口急剧膨涨400:01:45,042 --> 00:01:47,542因此一九五三年500:01:47,626 --> 00:01:49,792中港政府达成协议600:01:49,792 --> 00:01:51,834决定关闭关卡700:01:51,834 --> 00:01:55,917从此两地居民不得自由来往800:01:59,459 --> 00:02:03,709