求翻译：有的活动可能使人受益，如去旅行。这不仅使人心情愉快，又能学到许多在学校里学不到的知识，还锻炼了身体。还有找暑期工作，既锻炼了我们的动手能力，又提高了我们与别人沟通的能力。而另外一些活动也可能有危害性。如待在家里玩游戏，既危害眼睛，又浪费时间，使人上瘾。是什么意思？

Some activities may give rise to benefits such as travel. This not only makes people happy, but also learn a lot of knowledge not learn in school, but also exercise the body. There are looking for summer jobs, both exercise our ability to improve our ability to communicate with others. Some activiti

The activities are likely to benefit from, such as traveling. This not only makes people happy, but also learn a lot in school that can't be learned knowledge, but also training the body. There are also find summer jobs, we work out of our hands-on capacity, and also enhance our ability to communica

Some activities may benefit the people, s