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.
我已數(shù)次談及給未出生孩子播放音樂(lè)的益處。
2、He had a beneficial influence on the children.
他對(duì)孩子們產(chǎn)生了有益的影響。
短語(yǔ)：
1、to have a beneficial effect on sth 對(duì)…有益;有益于…
例句：Using computers has a beneficial effect on children's learning.
使用計(jì)算機(jī)對(duì)孩子們的學(xué)習(xí)有益。
2、beneficial to sth 對(duì)…有益的
例句：Wine in moderation is beneficial to health.
適量飲酒有益健康。