天文单位 Traditional 天文單位 tiān wén dān wèi 🔊 astronomical unit (AU) + Keep this word Meanings tiān wén dān wèi 天文單位 astronomical unit (AU) Its characters 天tiāndayHSK 1文wénlanguageHSK 7–9单dānbillHSK 5位wèipositionHSK 2