Definition

Examples

• 他对宇航很有兴趣，想当宇航员。
  Tā duì yǔ háng hěn yǒu xìngqù, xiǎng dāng yǔ háng yuán.
  He is very interested in astronautics and wants to become an astronaut.
• 中国的宇航技术发展得很快。
  Zhōngguó de yǔ háng jìshù fāzhǎn de hěn kuài.
  China's space technology is developing very quickly.
• 这本书介绍了宇航的基本知识。
  Zhè běn shū jièshào le yǔ háng de jīběn zhīshi.
  This book introduces the basics of space navigation.