Formost yog ib lub tuam txhab ua lag luam tshwj xeeb hauv kev tsim cov khoom racks rau cov khw muag khoom. Raws li cov chaw tsim khoom lag luam muaj koob npe nrov, peb muab cov khoom lag luam zoo xws li cov khw muag khoom hauv khw muag khoom, cov khw muag khoom, cov khau khau rau cov phab ntsa, thiab cov ntawv tuav pov hwm. Peb cov qauv kev lag luam yog nyob nruab nrab ntawm kev pabcuam cov neeg siv khoom thoob ntiaj teb, muab lawv cov kev daws teeb meem tshiab los txhim kho lawv qhov chaw muag khoom thiab nthuav qhia lawv cov khoom zoo. Nrog rau kev tsom mus rau cov khoom siv tes ua haujlwm zoo thiab cov neeg siv khoom txaus siab, Formost siv zog ua kom tau raws li cov kev xav tau tshwj xeeb ntawm cov lag luam thoob ntiaj teb. Cia siab rau peb kom txhawb nqa koj lub khw muag khoom ib puag ncig nrog peb ntau hom kev daws teeb meem.