check something off
phrasal verb with check verb uk/tʃek/ us/tʃek/
US
查讫，在…上打钩（表示正确或已处理）
to mark names or things on a list as correct or as having been dealt with
He checked off their names on the list as they got on the bus. 他们上车的时候他在他们的名字上打了钩。