钳住

钳住	qián zhù	to clamp down; to suppress
钳	qián	pincers / pliers / tongs / claw (of animal) / to grasp with pincers / to pinch / to clamp / to restrain / to restrict / to gag
住	zhù	to live; to reside; to stay / to stop; to cease / (result complement indicating firmness or a stable achieved state)