HSK 7-9
波澜
bōlán名
billows; great waves (fig. of a story with great momentum)
平静湖面突然泛起波澜。
Píng jìng hú miàn tū rán fàn qǐ bō lán.
Ripples suddenly appeared on the calm lake.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.