" Influenza" is a common illness that causes people typically to have a fever (to have a high temperature), muscle pains, and often more serious consequences.

“流感”是一种常见的疾病，通常会导致人们发烧（体温升高）、肌肉疼痛，并且通常会导致更严重的后果。

If my memory serves me well , on 7th days of the riding, my legs began to suffer from sever paints, and I was likely to have a fever.

在骑行的第七天，我的双腿开始非常疼痛，同时也有中暑的迹象。

On returning home Mathilde, in spite of madame de la Mole's remonstrances, pretended to have a fever and spent a part of the night in going over this melody on her piano.

回到家后，玛蒂尔德不顾德拉莫尔夫人的劝阻， 假装发烧，整夜用钢琴弹奏这首旋律。