Freeze-qhuav txiv tsawbncuav qab zib yog ib hom khoom qab zib uas siv cov txiv tsawb khov khov los yog cov khoom kom muab cov ncuav qab zib rau txiv tsawb tsw. Cov txheej txheem ntawm khov-qhuav tshem tawm cov dej noo ntawm cov txiv tsawb, ua rau cov hmoov los yog cov khoom me me uas tuaj yeem siv rau hauv ci.
