Wordiyolight-year
🇬🇧 UK/'laitjə:/🇺🇸 US
Definitions
n.
A unit of distance equal to how far light travels in one year, about 9.46 trillion kilometres.
光年（距离单位，约9.46万亿公里）
🧩 Root Breakdown
Native Englishlight-yearother
=light-year
Common Collocations
- 1.several light-years away相隔若干光年
- 2.light-years apart相距光年之遥
Example Sentences
- 1.
The nearest star system is about four light-years from Earth.