kún-lèng滾躘

to struggle and writhe in an effort to break

to struggle and writhe in an effort to break free (from restraints, confinement, etc.)

English Wiktionary, “滾躘” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%BB%BE%E8%BA%98 · confidence: Medium (Wiktionary)