She had a bad cold and her eyes were red.

她得了重感冒，眼睛红红的。

Cough is what you do when you have a bad cold.

咳嗽是你患重感冒时会做的事。

" Better, thank you. I've had a bad cold, and been shut up a week."

“好点了，谢谢你。我患了重感冒，困在屋里已经一个星期了。”

My nasal passages have been stopped up, so I just thought I had a bad cold.

我的鼻子也感觉不通气, 我觉得自己是患了重感冒。

Laurie opened the window I'm almost better, thank you, 'he said.'I've had a bad cold.'

罗瑞打开窗户。“我好多了，谢谢，”他说。“我得了重感冒。”

He has a bad cold, Mr. Williams, so he must stay in bed for a week.

他得了重感冒，威廉斯先生，因此他必须卧床一周。

So, it's true that if you have a bad cold, or if you just hold your nose, your sense of taste is impaired.

所以，如果你得了重感冒，或者你只是捏着鼻子，你的味觉就会受损。

I'm quite healthy. I very rarely get colds, although, unusually for me, I had a bad cold and a bit of a fever last week.

我非常健康。我很少感冒，虽然不常见，不过我上周得了严重的感冒，还有点发烧。

Difficult words: snot (liquid that comes from someone's nose when he has a bad cold or sneezes), bubonic plague (the most common type of plague in humans), ingrained (firmly established and difficult to change).

难的词：鼻涕（某人重感冒或打喷嚏时从鼻子里流出的液体）、黑死病（人类最常见的鼠疫类型）、根深蒂固（根深蒂固且难以改变）。