noun 下载 🔗分享 近日点 The point in the elliptical orbit of a planet or comet etc. where it is nearest to the Sun Examples : "Earth reaches its perihelion in early January, making that time of year when our planet is closest to the Sun. " 地球在每年一月初到达近日点,也就是说,那段时间是地球离太阳最近的时候。 astronomy space science physics 与AI对话词汇游戏阅读练习