共有地

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 tells us that we should not litter.
   常识告诉我们，我们不应该随地乱扔垃圾。
3. 3. The common thread running through all these stories is the theme of love.
   贯穿所有这些故事的共通主题是爱情。