用尽，用光run out是不及物动词短语,后面不能带宾语,也没有被动语态,如The ink run out.墨水用完了.一般主语是物.而run out of能接宾语,也有被动语态,如I run out of the ink.我用完了墨水./The ink was run out of.墨水被用完了.主语可以是人也可以是物.
