noun 下载 🔗分享 后殿，半圆室。 A recess or projection, with a dome or vault, at the east end of a church; an apse. Examples : "The sunlight streamed through the stained-glass windows in the apsis of the old church, illuminating the altar. " 阳光穿过老教堂后殿的彩色玻璃窗，照亮了祭坛。(Yángguāng chuānguò lǎo jiàotáng hòudiàn de cǎisè bōlí chuāng, zhào liàng le jìtán.) architecture religion building 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 近拱点，远拱点 Either of the points in the elliptical orbit of a planet or comet where it is closest or furthest from the sun; perihelion or aphelion; an apside Examples : "Astronomers carefully track the changing distance between Earth and the Sun, paying special attention to Earth's apsis, the points where it is either closest or farthest away in its orbit. " 天文学家们会仔细追踪地球和太阳之间不断变化的距离，尤其注意地球轨道的近拱点和远拱点，也就是地球轨道上离太阳最近或最远的点。 astronomy space physics math 与AI对话词汇游戏阅读练习
