parsecs
📖 中文释义
- (parsec 的复数) n. 秒差距(天体距离单位)
🧩 词形变化
原形 parsec
📘 English Definition（英文释义）
- plural of parsec
- n. a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years