英文mark音译，表示做标记，常出现在回帖中，表示”待阅“。固定搭配为重码，怒码，都表示狠狠码一记的意思。
ENTransliteration of the English word 'mark', meaning to make a mark, often appears in replies, meaning 'to be read'. Fixed collocations are 'heavy mark' and 'angry mark', both of which mean to mark something heavily.
