num.第三十九
He's been drinking whiskey on the sly for thirty years. 他暗中偷喝威士忌酒已有三十年了。
He had a shutout until the ninth inning. 他封锁对方打击直到第九局。
The students in our class number thirty. 我班总共有三十名学生。
She is in her thirty but looks old for her age. 她现在30几岁，但是看起来比她实际年龄要老。
The hotel has garage space for thirty cars. 这家饭店有停放30辆小汽车的车位。
There are more than thirty footmen in this hotel. 这家旅馆里有三十多名仆役。
