Lisa Desjardins has the story. And a warning: This report contains graphic language.

请听丽莎·德雅尔丹发回的报道。温馨提示：该报道中含有图形语言。

Search " hobo graffiti" online, and you’ll find these mysterious icons that hobos supposedly used as a sort of coded graphic language.

在线搜索“流浪汉涂鸦”，您会发现这些神秘的图标， 据说流浪汉将其用作一种编码图形语言。