noun🔗Share后殿，半圆室。 A recess or projection, with a dome or vault, at the east end of a church; an apse."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.)architecturereligionbuildingChat with AIVocabulary GamePractice Reading
noun🔗Share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"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。astronomyspacephysicsmathChat with AIVocabulary GamePractice Reading
