HSK 7-9
奋勇
fènyǒng动
dauntless; to summon up courage and determination; using extreme force of will
消防员奋勇冲进燃烧房屋。
Xiāo fáng yuán fèn yǒng chōng jìn rán shāo fáng wū.
The firefighter bravely rushed into the burning house.
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Appears across levels (7-9) in the HSK 3.0 word list.