mark something/someone off
phrasal verb with mark verb uk/mɑːk/ us/mɑːrk/
(从表中)勾去,划掉(表示已处理过)
If you mark off things or people that are on a list, you record that you have dealt with them.
As I complete each task I mark it off. 我每做完一项工作,就将它划掉。