| environ. |
season One of the four equal periods into which the year is divided by the equinoxes and solstices, resulting from the apparent movement of the sun north and south of the equator during the course of the earth's orbit around it. These periods (spring, summer, autumn and winter) have their characteristic weather conditions in different regions, and occur at opposite times of the year in the N and S hemispheres (四个相等时间段中的一个，一年按照岁差和太阳回归点分成这四个时间段。这是按照太阳在地球围绕太阳旋转的路线上的赤道南北回归线的移动来划分的。在这四个阶段(春天、夏天、秋天和冬天)，不同地区有不同气候特点，并且在南北半球的时间正好相反。) |
