common courts

例句：

1. 1. The common cold is a very common illness.
   普通感冒是一种非常常见的疾病。
2. 2. Common sense is the ability to make good decisions based on general knowledge.
   常识是基于一般知识做出良好决策的能力。
3. 3.Common practices have been shown to be effective in improving productivity.
   已被证明在提高生产力方面是有效的常见做法。