HSK 7-9
劲
jìn名
strength; energy; enthusiasm; spirit
队员鼓足劲向山顶冲去。
Duì yuán gǔ zú jìn xiàng shān dǐng chōng qù.
The team members summoned their strength and charged toward the summit.
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Appears across levels (7-9) in the HSK 3.0 word list.