n.流行性感冒
I got flu and was out of commission for a week. 我得了流感，一星期没工作。
The school was closed because of the flu. 因为流行性感冒全校停止上课。
I caught a flu and had to lie in the bed. 我得了流感，不得不卧床休息。
His flu infected his wife. 他把流行性感冒传染给妻子。
I've been laid up with flu for a week. 我患流感已在家休息一个星期了。
flu是influenza的缩写，常与定冠词the连用，但在英式英语中也常省略the。
