on the fifteenth
在第十五天
on the fifteenth floor.
在15楼。
The palace was built in the fifteenth century.
这宫殿建于十五世纪。
The fifteenth to Belga, the sixteenth to Emmer,
十五为彼耳加，十六为依默尔，
The castle was enlarged considerably in the fifteenth century.
这个城堡在15 世纪得到了相当大的扩展。
Did the matter in question occur on or about ten o'clock on the fifteenth of June?
那事是在6月15日10点或10点左右发生的吗?
there was the rich square bell tower of Saint-Jacques de la Boucherie, with its angles all frothing with carvings, already admirable, although it was not finished in the fifteenth century.
除了小堡，还有屠宰场圣雅各教堂的华丽方形钟楼，各个墙角布满雕像，尽管十五世纪时尚未峻工，却已经叫人赞叹不已了。
One of the first, invented in the fifteenth century, was a hygrometer, which measured humidity.
最早的其中之一是在15世纪被发明出来的湿度计，用来测试湿度。
来源: Cambridge IELTS Listening Actual Test 14It is an important change from the paintings of the fifteenth century.
与十五世纪的绘画相比，这是一个重要的变化。
来源: Secrets of MasterpiecesThis is the fifteenth time I'm telling you to be quiet.
这是我第十五次告诉你要保持安静了。
来源: Emma's delicious EnglishEm, enough time, but not too early. What about the fifteenth of December?
时间很充足，不要太早了。12月15日怎么样？
来源: Cambridge IELTS Listening Actual Test 4On June fifteenth, the election was held for delegates to the constitutional convention.
6月15日，堪萨斯举行了制宪会议代表选举。
来源: VOA Special May 2019 CollectionThere are several buildings constructed by the Catholic church in the fifteenth century.
有很多建筑是由天主教堂在 15 世纪的时候修建的。
来源: Emma's delicious EnglishThe pilot answered with a mischievous twinkle. See you the fifteenth, he grinned.
飞行员用调皮的笑容回答道，我们15号见，他笑道。
来源: American Elementary School English 6It was the fifteenth of March, and Duncan was exactly eleven years old.
那是3月15日，邓肯正好11岁。
来源: American Elementary School English 5Yeah, but, you know, it's...it would be like starting on the fifteenth date.
对，但这就像从第15次约会开始。
来源: Friends Season 1 (Edited Version)Her class at Smith College was to gather for the fifteenth anniversary of their graduation.
当时，她在史密斯学院的班级要组织毕业15年聚会。
来源: VOA Special December 2018 Collectionon the fifteenth
在第十五天
on the fifteenth floor.
在15楼。
The palace was built in the fifteenth century.
这宫殿建于十五世纪。
The fifteenth to Belga, the sixteenth to Emmer,
十五为彼耳加，十六为依默尔，
The castle was enlarged considerably in the fifteenth century.
这个城堡在15 世纪得到了相当大的扩展。
Did the matter in question occur on or about ten o'clock on the fifteenth of June?
那事是在6月15日10点或10点左右发生的吗?
there was the rich square bell tower of Saint-Jacques de la Boucherie, with its angles all frothing with carvings, already admirable, although it was not finished in the fifteenth century.
除了小堡，还有屠宰场圣雅各教堂的华丽方形钟楼，各个墙角布满雕像，尽管十五世纪时尚未峻工，却已经叫人赞叹不已了。
One of the first, invented in the fifteenth century, was a hygrometer, which measured humidity.
最早的其中之一是在15世纪被发明出来的湿度计，用来测试湿度。
来源: Cambridge IELTS Listening Actual Test 14It is an important change from the paintings of the fifteenth century.
与十五世纪的绘画相比，这是一个重要的变化。
来源: Secrets of MasterpiecesThis is the fifteenth time I'm telling you to be quiet.
这是我第十五次告诉你要保持安静了。
来源: Emma's delicious EnglishEm, enough time, but not too early. What about the fifteenth of December?
时间很充足，不要太早了。12月15日怎么样？
来源: Cambridge IELTS Listening Actual Test 4On June fifteenth, the election was held for delegates to the constitutional convention.
6月15日，堪萨斯举行了制宪会议代表选举。
来源: VOA Special May 2019 CollectionThere are several buildings constructed by the Catholic church in the fifteenth century.
有很多建筑是由天主教堂在 15 世纪的时候修建的。
来源: Emma's delicious EnglishThe pilot answered with a mischievous twinkle. See you the fifteenth, he grinned.
飞行员用调皮的笑容回答道，我们15号见，他笑道。
来源: American Elementary School English 6It was the fifteenth of March, and Duncan was exactly eleven years old.
那是3月15日，邓肯正好11岁。
来源: American Elementary School English 5Yeah, but, you know, it's...it would be like starting on the fifteenth date.
对，但这就像从第15次约会开始。
来源: Friends Season 1 (Edited Version)Her class at Smith College was to gather for the fifteenth anniversary of their graduation.
当时，她在史密斯学院的班级要组织毕业15年聚会。
来源: VOA Special December 2018 Collection探索常用高频词汇