第 20 课: 速度和距离-5

This is the number of days in a year. 这是一年内的天数。

This is the number of weeks in a year. 这是一年内的周数。

This is the number of months in a year. 这是一年内的月数。

This is the number of hours in a year. 这是一年内的小时数。

This represents one century. 这表示一个世纪。

This represents three centuries. 这表示三个世纪。

This represents less than a century. 这表示不到一个世纪。

This represents ten centuries. It is a millennium. 这表示十个世纪。 是一千年。