My son's contracted a severe fever.是什么意思？

My son's contracted a severe fever.

我的儿子发高烧。

my

adj. 我的(I的所有格形式)；int. 啊呀，天啊；

例句
Racial discrimination is abhorrent to my council and our staff...
我的顾问班子和全体工作人员都对种族歧视深恶痛绝。

contracted

adj. 收缩了的，已定约的，契约的；

例句
The Boston Museum of Fine Arts has already contracted to lease part of its collection to a museum in Japan.
波士顿美术博物馆已经签订合同，将其部分藏品租借给日本一家博物馆。

severe

adj. 严峻的，严厉的，剧烈的，苛刻的；

例句
He had severe abrasions to his right cheek.
他的右脸颊有严重的擦伤。

fever

n. 发热，发烧，热病，一时的狂热，激动不安；vt. 引起发热，使狂热，使患热病；vi. 发热或变得发热，狂热，患热病；

例句
Hay fever is an affliction which arrives at an early age.
枯草热是年纪较小时会患的一种病。