狠劲

Traditional form:

狠勁

Pinyin (reading):

hěnjìn

Definitions:

• to exert all one's force
• all-out effort
• CL:股 (gǔ)

Characters:

• 狠 - vicious, fierce, cruel
• 劲 - strong, tough, unyielding; power, energy

Traditional characters:

• 狠 - vicious, fierce, cruel
• 勁 - strong, tough, unyielding; power, energy