be beneficial to后加名词或动词原形do，中文意思是“对某事或做某事有益”It can be beneficial to share your feelings with someone you trust.It may be beneficial to add a test that covers this code explicitly.Advertising can be beneficial to the customers if it is true to its claims.be beneficial to后加什么beneficial是有益的，有好处的。这种词组用法不能死记硬背，要从语法上考虑。to之后的单词是动词时是不定式，多作修饰成分，如somethingtoeat等to本身是介词，后应接名词性的词。表示“对”、“向”等，如Isaysomethingtoyoumovetotheeast等。本题中to即为介词。因此根据语境，尤其是之前出现的结构，看一看to后面需要接的词能否作这个结构的承受者。如lookforwardto等
}