come in 不及物动词短语,相当于不及物动词,后不跟地点,如：The teacher came in .
come into 相当于及物动词,后跟地点,如：The teacher came into the classroom.
in是副词 into是介词
come in 和come into的区别及此处in into的词性
come in 不及物动词短语,相当于不及物动词,后不跟地点,如：The teacher came in .
come into 相当于及物动词,后跟地点,如：The teacher came into the classroom.
in是副词 into是介词