Roud then ventures a theory of his own: the custom, he argues, probably developed from a children’s game called Tig-touch-wood that was popular in early 19th century England.
// Hook the 'src' property setter on ALL media elements, forever，这一点在safew官方版本下载中也有详细论述
Author(s): Dahua Ren, Qingwei Wang, Zhangyang Zhou, Xinguo Yan, Chunyan Zhang, Teng Zhang, Liushun Wang, Qiang Li, Xingyi Tan, Jinqiao Yi。同城约会对此有专业解读
圖像來源，Getty Images