Kauj ruam 1:Kev hloov kho tuaj yeem ua ib tus zuj zus los ntawm kev siv ob lub hau ntswj.
Kauj Ruam 2: Kev cai qauv
Tightening cov ntsia hlau ua rau cov khoom hnyav ntawm sab ntawd;
Loosing cov ntsia hlau txo cov khoom hnyav ntawm sab ntawd.
Lus Cim Tseem Ceeb:
Ua kom me me xwb, ntxiv kev hloov kho rau cov ntsia hlau; tsis txhob tig nws drastic nyob rau hauv ib kauj ruam. Rov ua piv txwv, hnyav, thiab ntsuas ntsuas kom ntseeg tau tias cov khoom tiav ntawm ob sab yog qhov hnyav.
