common forget-menot

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. This book is one of the most common books in the library.
   这本书是图书馆中最常借阅的书之一。
3. 3.Common sense tells us that we should not eat raw meat.
   常识告诉我们我们不应该吃生肉。