Noun:
-
the time for the earth to make one revolution around the sun, measured between two vernal equinoxes
用作名词 (n.)
- The tropical year is a phenomenon of the precession of the equinoxes in astronomy.
太阳年是天文学里的岁差现象。
- A tropical year is a measurement of time from one winter solstice to the next.
回归年是指从一年冬至到下一年冬至的时间段。