“有用的”的英语可以翻译为：helpful，available，[机] useful，expedient，serviceable ...

全国的学生都相信高等教育是有用的。Belief in the utility of higher education is shared by students nationwide.我们淹没在大量的数据中却找不到有用的信息。We were drowning in data but starved of information.有她在那儿还是挺有用的，能开车带他到处跑。It was certainly useful to have he...