活动是有益的
The activity is beneficial
以上为机器翻译结果，长、整句建议使用 人工翻译 。
一些人认为中学生参加有组织的体育活动是有益的，而另一些人则认为体育活动是浪费时间。
Some people feel that high school students benefit from participating in organized sports, while others feel that sports is a waste of time.
youdao
星期六一整天停止一切学习活动是有益的。
It is good to stop all study activities for one full day.
参与团体活动是有益的。
Involvement in groups will be favorable.
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