Cap rau tus ntxhais "Kuv xaws nws los ntawm dab tsi yog"

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  Lub tsho laus + lub tsho tiv no qub + daim ntawm plaub (xuab zeb) = lub kaus mom tshiab. Kuv

  

  Visor thiab pob ntseg tig strips 2 cm dav thiab ntawm kab txaij

  

  kwv yees li 1.5 cm. Rau cov plaub hau txuag thiab rau qhov muag muag ntawm lub taub hau (ntawm yuav

  

  Cov qhua tuaj noj mov, thiab ib tug tswvcuab ntawm tsis tau zoo dua) nyob rau sab saum toj ntawm ib feem ntawm cov qub

  

  Cov hws - pob ntseg thiab sab saud cais, tsis zoo ntawm tus kheej.