| 例句 |
The staircase appears almost to be floating on air, as it winds its way up three stories.楼梯盘旋直上三层楼，看起来好像漂浮在空中一般。Plant three trees for every one that is cut down.每砍一棵树要种上三棵树。She goes to nursery three days a week.她每周上三天幼儿园。Most of the students' scores were in the upper third of the range.大部分学生的成绩都处于分数分布范围的上三分之一。She tore across the lobby, then up three flights of stairs.她快速跑过大厅，再跑上三段楼梯。My son will be starting third grade this fall.我儿子今年秋天该上三年级了。At our school we have four periods in the morning and three in the afternoon.我们学校上午上四节课，下午上三节课。We figure on maybe taking three weeks' vacation in Europe next fall.我们打算接下来的秋天或许要去欧洲度假，玩上三个星期。They trekked their luggage up to the second floor.他们把行李搬上三楼。I was thinking of ways to keep him occupied for three or four hours.我正在想办法使他忙上三四个小时。 |