【例句】
a drug that has a beneficial effect on the immune system
有益于免疫系统的一种药物
【例句】
Cycling is highly beneficial to health and the environment.
骑自行车对于身体和环境大有裨益。
【例句】
an arrangement that is mutually beneficial (=it has advantages for everyone who is involved)
一项互惠互利的协定
