一次重感冒英语怎么说

"Severe cold" 是一次重感冒的英文翻译。
来源："cold" 是指感冒的常用词汇，"severe" 是指严重的，因此结合使用表示重感冒。
例句：
"I caught a severe cold and had to stay home for a week." (我得了重感冒，不得不呆在家里一个星期。)
"My sister's severe cold turned into pneumonia." (我姐姐的重感冒变成了肺炎。)
"I had a severe cold last month and couldn't go to work for three days." (上个月我得了重感冒，不能去上班三天。)