There's an informal network of volunteers.

有一个非正式的志愿者网络。

Hundreds of millions move through these informal networks every day.

每天会有上亿的资金通过这些非正规渠道进行转移。

Today people all over the world have created a vast, informal network of night sky listeners.

今天，世界各地的人们已经创建了一个庞大的、非正式的夜空听众网络。