Liab thiab rhiab: Tom qab kho, tawv nqaij yuav tshwm sim liab, feem ntau yog vim qee qhov voos ntawm daim tawv nqaij vim muaj laser. Nyob rau tib lub sijhawm, daim tawv nqaij kuj tuaj yeem dhau los ua neeg rhiab thiab tsis taus. Pirmentation: Qee tus neeg yuav ua tau sib txawv ntawm cov pigmentation tom qab kev kho mob, w ...
Nyeem ntxiv