Cov kev sib txheeb ntawm cov ntaub thiab daim ntaub

Incalusion: Daim ntaub yog lub sijhawm dav ua ke rau ob qho tib si greige thiab tiav ntaub.

Ua theem: Cov ntaub ntawm cov ntaub yog cov khoom nruab nrab hauv cov khoom muag khoom.

Cov yam ntxwv sib piv: Cov ntaub ua tiav poob qis ua rau cov softer thiab ntau dua kev ua kom zoo nkauj ua tiav, thaum cov kab muaj kev ruaj khov.

Siv cov sib txawv: Greige npuag feem ntau yog siv rau kev lag luam kev lag luam ntxiv, thaum ua tiav ntaub yog siv rau cov khoom siv thiab cov ntaub ntawv hauv tsev.