最常发生在进行娱乐性体育活动的人群中。
It most commonly occurs in people playing recreational sports.
本发明涉及一种有机发光显示器应用在风筝制作上的显示装置，属于体育 运动器具技术领域。放风筝是健康身心的娱乐性体育活动。
The invention relates to a display apparatus applying organic light emitting display in kite production, pertaining to physical exercise instrument technique field.
踏单车不但是环保的短途代步方式，更是一种富娱乐性而有益身心的体育活动。
Cycling is not only an environmentally-friendly means of transportation for short journey, but also a recreational activity bringing benefits to physical health.
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