I have to have short hair
不得不留───Had to stay;短发───Short hair
The doctor said (that) I had to stay in bed.───医生说我必须卧床休息。
If it had not been for a very lucky chance, he probably would have had to stay there longer.───如果不是因为一个非常幸运的机会，他可能会不得不在那里待得更久。
I had a bad cold and had to stay inside for a week.───我得了重感冒，不得不在屋里呆了一个星期。
He was very (disappointed) when I said he had to stay at home on Sunday.───当我说周日他不得不呆在家里时他非常失望。
After he missed the last bus and had to stay over-night, he was afraid he had worn out his welcome.───他赶不上最后一班公车，不得不停留一夜，他怕他已经不受欢迎了。
For once, she was glad she had not installed the car alarm or else she would have had to stay with the car or come back.───这一次，她感到颇为得意，因为她没有装汽车报警装置，否则她得守在车边或者要赶回来。
She failed her exam, and had to stay on at school for another year.
It rained all day so we had to stay indoors.
The doctor told me I had to stay in bed. OR The doctor said I had to stay in bed. NOT The doctor said me to stay in bed.
Clare had to stay off school because her mother was ill.
I had to stay two days in Lincoln International Airport by the worst storm in years.