“有益的”的英语可以翻译为：eneficial，useful，advantageous，benignant，helpful ...

从这次惨痛的经历中他得到了一些有益的教训。From this chastening experience he learnt some useful lessons.他们认为这个变革对该国无疑是非常有益的。They have seen the change as unquestionably beneficial to the country.与别人谈谈自己的想法是有益的。It was good to bounce ideas off ...