1 . be blind in 失明。如：

He is blind in both eyes. 他双目失明。

2 . be blind to sth 对某事视而不见或一无所知。

He is completely blind to her faults. 他一点儿也觉察不到她的错误。

He was blind to all arguments. 和他有理讲不通。

3 . the blind 瞎子，盲人。如：

In that country the blind have special jobs. 在那个国家瞎子有特别的职业。

4 . turn a blind eye to sth 假装没看见。如：

The boss sometimes turns a blind eye to smoking in the office. 老板有时对在办公室抽烟假装没看见。