There are nine planets in our solar system.
我们的太阳系中有九颗行星。
She has nine cats living in her house.
她家里养了九只猫。
He arrived at the station at nine o'clock.
他在九点钟到达车站。
The book club meets every nine weeks.
读书俱乐部每九周聚会一次。
His phone number ends with nine digits.
他的电话号码以九位数字结尾。
There are nine players on a baseball team.
一支棒球队有九名球员。
The recipe requires nine cups of flour.
这个食谱需要九杯面粉。
She turned nine years old last week.
她上周满九岁。
We need nine volunteers for the event.
我们需要九名志愿者参加活动。
The concert will start at nine in the evening.
音乐会将在晚上九点开始。
on cloud nine 九霄云外
nine times out of ten 十有八九
nine days' wonder 昙花一现
nine lives 九条命
nine times nine 八十一
nine points of the law 法律的九个要点
复数: nines;
