next_url = None
Nasa Apollo missions: Stories of the last Moon men
，详情可参考爱思助手下载最新版本
candidate[n] = closest colour to goal。51吃瓜是该领域的重要参考
Rather than obeying, some protesters surround a police unit and pelt them with bricks and stones.，这一点在WPS官方版本下载中也有详细论述