Correct
航线
/ hángxiàn /
Strokes
Definition
air or shipping route
Example
As a Noun
air/shipping line; route; course
1
Yuǎnyáng
远洋
hángxiàn
航线
ocean navigation line
2
Nèihé
内河
hángxiàn
航线
inland navigation line
3
Guójì
国际
hángxiàn
航线
international air line