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。