Pericenter
近心点; 近中心点
🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
Thank you for your nice present.
谢谢你那么好的礼物。
Oh, that's quite early! Where are we going to meet?
噢，那很早！我们打算在哪儿会合？