Yog tias tsis ntxuav, cov hmoov kas fes seem yuav nqus cov ntxhiab thiab cuam tshuam ncaj qha rau qhov saj ntawm cov kas fes tom ntej. Hloov nws upside down thiab ncuav tawm cov kas fes seem ntawm qhov sib tsoo core; Koj tuaj yeem siv txhuam hniav los yog lwm yam txhuam hniav kom tshem tawm cov hmoov kas fes seem ntawm lub thawv kas fes, qhov txav hauv qab no, thiab lwm qhov chaw; Thaum kawg, nws yuav zoo dua los tshuab nws nrog lub tshuab ziab khaub ncaws. Ua ntej rov siv dua, grind me ntsis taum ua ntej, ncuav lawv tawm, thiab tom qab ntawd zom lawv kom txo qhov cuam tshuam ntawm cov hmoov kas fes seem.