常見例句用作名詞 (n.)Otherwise difficult to notice, the change in the Sun's apparent diameter between Perihelion and Aphelion is clear.我們很難用肉眼看出近日點(diǎn)和遠(yuǎn)日點(diǎn)太陽視直徑的變化，但在這張圖上顯而易見。 返回 aphelion