HSK 7-9
辽阔
liáokuò形
vast; extensive
辽阔的草原一直伸向天边。
Liáokuò de cǎoyuán yìzhí shēnxiàng tiānbiān.
The vast grassland stretches all the way to the horizon.
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Appears across levels (7-9) in the HSK 3.0 word list.