首頁›Browse›E›extrasolar planetextrasolar planet編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看extrasolar planetextrasolar planet — 名詞名詞1. A planet that orbits a star outside our solar system.1.名詞釋義系外行星A planet that orbits a star outside our solar system.例句Astronomers discovered a new extrasolar planet with a year lasting only 10 days.