adj. 有益的，有利的;可享利益的
例句：
1、I have mentioned a number of times the beneficial effects of music played to the unborn child.
我已数次谈及给未出生孩子播放音乐的益处。
2、He had a beneficial influence on the children.
他对孩子们产生了有益的影响。
短语：
1、to have a beneficial effect on sth 对…有益;有益于…
例句：Using computers has a beneficial effect on children's learning.
使用计算机对孩子们的学习有益。
2、beneficial to sth 对…有益的
例句：Wine in moderation is beneficial to health.
适量饮酒有益健康。