English rendering Clench one's fist in resolve Literal translation: “Clench a fist tightly”
Suddenly clench one's fist to express determination.
Dictionary example 1
그는 결심한 듯이 주먹을 불끈 쥐었다.
Read the meanings, trace, then cover above the masking line and write. Uncover, choose a meaning, and make your own sentence.
Writing text주먹을 불끈 쥐다
Explore the body parts or scenes linked to this idiom.
A silent film that writes the headword and its meaning.
straighten the bow arm’s elbow For the elbow of the arm holding a bow to be extended straight. 
2 meanings feel free and at ease To escape a feeling of oppression and feel mentally free. 
show off one’s biceps To expose one’s arms and boast of one’s strength. 
Shared · 3 Roll up one’s sleeves Prepare to plunge into something and work actively 
Stand by idly Merely watch what happens without stepping forward to resolve it. 
Swing one’s arms while walking Walk alternately swinging the two arms forward and back in opposite directions 
4 meanings Stride vigorously; swagger; proliferate; flap wings Walk swinging both arms strongly in alternating directions. 
2 meanings spread one’s limbs or live confidently To stretch out one’s arms and legs. 
Interlace one's fingers Firmly fit all ten fingers between one another. 
Shared · 2 Release the bowstring Release a taut bowstring with the thumb wearing a bow ring. Browse in Hangul order.
WORDROW Korean Idioms 