HSK 7-9
航行
hángxíng动
to sail; to fly; to navigate
货轮正在茫茫海上航行。
Huò lún zhèng zài máng máng hǎi shàng háng xíng.
The freighter is sailing across the vast sea.
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Appears across levels (7-9) in the HSK 3.0 word list.