我给你单独分析No matter what funny things you are talking about,主语you,谓语are talking ,后面介宾短语about介词,宾语what funny things,而最前面No matter引导让步状语从句。你也可以改成中文语序,以便理解,也就是No matter+you are talking about what funny things,无论你在谈论什么有趣的事情希望我的回答对你有帮助
matter是动词,“要紧”的意思
----things that matter----- 定语从句