be rotten to the core

例句：

1. 1.The food was rotten and had to be thrown away.
   食物腐烂了，不得不扔掉。
2. 2.The old book is rotten with age.
   这本旧书已经破旧不堪了。
3. 3. The meat was rotten and made us sick.
   那肉烂了，让我们生病了。