发烧友: not a friend with high fever

In order to know the meaning of the word 发烧友 (fāshāoyǒu), we should first know something about 发烧 (fāshāo, fever). As we know, the first meaning of 发烧(fāshāo) means someone who has high temperature or run high fever. 

在了解“发烧友（fāshāoyǒu）”的含义之前，我们得先学习一下“发烧”这个词。我们知道“发烧”的第一种意思是指某人的体温高于正常水平（run high fever）。

Examples:

例句：

1. zhèɡeháizifāɡāoshāoérqiěshuōhúhuà

这个孩子发高烧而且说胡话。

The child had a high fever and became delirious.

2. rúɡuǒnǐfāshāo, jiùyīnɡɡāiwòchuánɡxiūxi。

如果你发烧，就应该卧床休息。

If you are running a temperature, you should stay in bed.

The second meaning of 发烧 is "to be obsessed with" or "be infatuated with". Here are some examples:

“发烧”的第二种意思是指“对……着迷/迷恋（to be obsessed with或be infatuated with）”。请看以下例句：

zhèɡeqīnɡniánduìqìchēshífēnfāshāozháomí

这个青年对汽车十分发烧着迷。

The young is obsessed with cars.

zhèɡexuéshenɡduìwǎnɡluòfāshāo

这个学生对网络发烧。

The student is infatuated with the web.

After knowing what is 发烧, it is not very difficult for us to understand the meaning of 发烧友。发烧友 means someone who is fascinated with something such as music, cars, or high-tech products. In English, we can call them enthusiast, zealot, fancier and so on. 

了解“发烧”的意思之后，“发烧友”的意思就比较容易理解了。“发烧友”是指那些对诸如音乐、汽车或高科技产品等非常着迷的人，即英文中的“enthusiast”、“zealot”或“fancier”等。

Example:

例句：

zhèxiēqìchēfāshāoyǒuzuìjìnzǔzhīleyíɡèjùlèbù。

这些汽车发烧友最近组织了一个俱乐部。

The car-fanciers have recently organized a club.

Translated from: chineseforkids.kinja.com