English主要词典
ninety
Universal Words
1 number 90
2 noun (the nineties) [pl.] numbers, years or temperatures from 90 to 99:
The temperature must be in the nineties today.
ninetieth ordinal number:
her ninetieth birthday
IDIOMS
in your nineties between the ages of 90 and 99
ninety-nine times out of a hundred almost always