HSK 7–9 · noun · Practice
高空
high altitude; upper air
飞机在高空飞行，窗外全是白云。
Fēijī zài gāokōng fēixíng， chuāng wài quán shì bái yún。
The plane flies at high altitude, and outside the window it is all white clouds.
HSK 7–9 · noun · Practice
high altitude; upper air
飞机在高空飞行，窗外全是白云。
Fēijī zài gāokōng fēixíng， chuāng wài quán shì bái yún。
The plane flies at high altitude, and outside the window it is all white clouds.