common pear

例句：

1. 1.The common cold is a very common illness.
   普通感冒是一种非常普遍的疾病。
2. 2. She has a common sense that most people lack.
   她有一种大多数人没有的常识。
3. 3. Common mistakes can lead to serious consequences.
   常见的错误可能会导致严重的后果。