时间的始末和中心，冬至夏至的转变，和季节的变更。

The beginning, and ending, and midst of the times, the alterations of their courses, and the changes of seasons.

youdao

时间的始末和中心，冬至夏至的转变，和季节的变更。

The beginning, and ending, and midst of the times, the alterations of their courses, and the changes of seasons.

youdao