At this rate they'd be lucky to get home before eight-thirty or nine.
照这样下去，他们能在8：30或9：00前到家就很走运了。
《柯林斯英汉双解大词典》
2
He sleeps eight or nine hours a day.
他每天睡八到九个小时。
3
Floating ribbons waving discus with eight, nine points sincere, very enthusiastic, put them in countless wishes to you, let the Dragon Boat Festival good luck.