High-brightness liab nplhaib nres lub teeb, muab kev nyab xeeb thiab txhim khu kev qha lus ceeb toom rau caij;Tag nrho ntim cov qauv tsim tsis muaj dej, ruaj ntseg thiab txhim khu kev qha;Teeb txoj haujlwm teeb, nres lub teeb thiab tig teeb liab hauv ib qho.