beneficial
/ˌbenɪˈfɪʃəl/adjective
1- resulting in good; favourable or advantageous效果好的, 有好处的; 有利的：
the beneficial effect on the economy
对经济的有利影响
the process was beneficial to both supplier and customer.
这个程序对供货商和消费者双方都有益。
1.1
- Law of or relating to rights to the use or benefit of property, other than legal title【律】（与）权益（有关）的, 有财产使用权的, 受益的。
派生词
beneficially
adverb词源
late Middle English: from late Latin beneficialis, from beneficium （see BENEFICE）.