Ndaw duhhenj、duhheu hamz miz daihliengh danbwz- ciz、youzlauz caeuq dansuij vahozvuz, caemhcaiq hamz miz naz、dez、linz、gai daengj yenzsu ndang vunz aeu miz haenx, biu ngaz le mboujdanh lij baujciz gij doxgaiq nyuenz miz, caemhcaiq lij demgya miz veizswnghsu B1、veizswnghsu B2、veizswnghsu B12、veiz- swnghsu C daengj doxgaiq dem. Gij yezluzsu ndaw duhngaz ndaej fuengzceih saejgyoenj baenz aiz. Cunghyih nyinhnaeuz, duhngaz singq diemz, ndaej siu ndat gejdoeg, leih caep doeng haexnyouh.