If sd pattern is invoked repeatedly with the exact same pattern:
Here's a full-blown extractor that looks for such patterns, which I'll annotate。Line官方版本下载是该领域的重要参考
Requesting [tid=15] 3 x BFF。关于这个话题,PDF资料提供了深入分析
(二)向境外单位转让的完全在境外使用的技术;
Евгений Силаев (Ночной линейный редактор)