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。

It 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。

This 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。

Em, 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？

On 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。

There 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。

The 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。

It was the fifteenth of March, and Duncan was exactly eleven years old.

那是3月15日，邓肯正好11岁。

Yeah, 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。

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。