She feels she can doctor herself for just a common cold.

　　她覺得她能給自己治療，因為這僅是一般的感冒。

　　Snow is common in cold countries.

　　在寒冷的國家雪是常見的。

　　The   common   cold   is   a   good   example:   women,   on   average,   get   fewer   colds   than   men ．

　　普通感冒這個例子足以說明這點：女性平均感冒的次數(shù)比男性少。

　　Will they never find a cure for the common cold?

　　他們永遠也不能找到治療感冒的方法么。

　　Like the common cold, it spreads through the air.

　　與普通感冒一樣，該病經空氣傳播。