HSK 7-9
开垦
kāikěn动
to clear a wild area for cultivation; to put under the plow
村民在山脚开垦了一片荒地。
Cūn mín zài shān jiǎo kāi kěn le yí piàn huāng dì.
The villagers cleared a piece of wasteland at the foot of the mountain.
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Appears across levels (7-9) in the HSK 3.0 word list.