"Hobby" is the Engpsh word for "爱好" in Chinese. It refers to an activity or interest that someone enjoys doing in their free time for pleasure, rather than for work or as a necessary part of their daily routine.

The word "hobby" comes from the Old Engpsh word "hobyn," which means "small horse." It is bepeved to have originated as a term for a small, leisure horse that was kept for pleasure riding or for hunting. Over time, the meaning of the word evolved to refer to any activity or pastime that someone enjoys doing in their free time.

Here are some examples of sentences using the word "hobby" in Engpsh:

"My hobby is playing the piano. I love to sit down at the keyboard and just lose myself in the music."
"Collecting stamps is a popular hobby among many people. They enjoy finding and acquiring new stamps to add to their collection."
"I've always been interested in photography. It's a hobby that allows me to capture and share special moments with others."

In Chinese, these sentences could be translated as:

"我的爱好是弹钢琴。我喜欢坐在键盘前沉浸在音乐中。"
"集邮是很多人都喜欢的爱好。他们喜欢寻找并收集新邮票来增加他们的集邮。"
"我一直对摄影感兴趣。这是一项让我能够捕捉并与他人分享特殊时刻的爱好。"