大嘴:
An American family is sufferring from a rare disease called “loss memory of face”. 

有一个美国家庭患有一种罕见的面孔遗忘症。
脸盆:
Oh,is that true? 

哦,真的吗?
大嘴:
Yeah , Hurd is a retired arts professor of US and he often forgets looks of acquaintances. 

是的,赫德是一名退休的美国大学艺术系教授,他经常会忘记熟人长得什么样。
脸盆:
Why? How does he remember old friends ? 

怎么会这样呢?他靠什么记忆熟人呢?
大嘴:
Hurd gradually learned to identify other people with voices、hair styles、body figures or walking gestures . 

赫德渐渐学会了通过声音、发型、体型或走路姿态来辨认他人的身份。
脸盆:
Is it a hereditary disease ? 

这是一种家族遗传的疾病吗?
大嘴:
Yeah ,the two daughters of him also got the same disease . 

是的,他的两个女儿也患有这种疾病。
脸盆:
If so ,they don’t know each other when they meet. 

如果这样,他们见面也不会认识的。
大嘴:
Yeah ,they don’t know each other although they live together . 

是啊,他们全家生活在一起却不相识。
脸盆:
So surprising! 

这太奇怪了!