(as) deaf as an adder

• 极聋；全聋

(as) deaf as an adder的用法和样例：

例句

1. The bells ruined his ears, and made them deaf.
   钟毁坏了他的听觉，使他两耳全聋了。
2. Many of these children are profoundly deaf.
   这些孩子中有许多是全聋的。