光年 (guāng nián) — light-year

Définition

Exemples

• 科学家用光年来测量星星之间的距离。
  Kē xué jiā yòng guāng nián lái cè liáng xīng xing zhī jiān de jù lí.
  Scientists use light-years to measure distances between stars.
• 离我们最近的星星有四光年多。
  Lí wǒ men zuì jìn de xīng xing yǒu sì guāng nián duō.
  The nearest star to us is over four light-years away.
• 一光年大约是九万四千六百亿公里。
  Yì guāng nián dà yuē shì jiǔ wàn sì qiān liù bǎi yì gōng lǐ.
  One light-year is about 9.46 trillion kilometers.