Ntawm qhov tsis sib xws, qhov chaw txav chaw ntawm cov hlaws dai yuav ua me thiab me dua, thiab cov hlaws dai yuav yaim thiab nruj dua. Tshwj tsis yog tias koj muaj zog heev thiab tuaj yeem rub tawm cov anti-buckle rau hauv slag, nws tsis yooj yim sua kom qhib nws.
Ntxiv mus, ntau cov khoom siv los tiv thaiv tub sab hauv cov khw loj yog nruab nrog kua mem. Yog tias koj qhib lub sib nqus buckle nrog brute quab yuam, tus number case nyob hauv lub tuam txhab tiv thaiv kev tub sab hauv cov khw loj tuaj yeem muab tshuaj tsuag tawm thiab tag nrho cov khaub ncaws pov tseg.
Yog tias koj xav qhib lub buckle no, koj yuav tsum coj nws mus rau tus neeg luj khoom. Muaj qhov tshwj xeeb yuam kev xauv lub pob, thiab cov hlaws sab hauv tuaj yeem rov qab mus rau nws qhov chaw. Tom qab ntawd koj tuaj yeem yooj yim qhib cov hlau nplaum sib tsoo dua. Ntawm chav kawm, kuj tsis txhais tau tias ib tus neeg qhib yuav qhib tag nrho cov nyiaj tiv thaiv tub sab nyiag khoom rau cov khoom lag luam loj. Feem ntau, tawm tsam cov tub sab rau cov khoom lag luam loj nrog cov sib nqus sib txawv ntawm cov tub rog xav tau tshwj xeeb cov xauv kom qhib. Yog li no, qhov kev tawm tsam los tiv thaiv tub sab ntawm qhov sib nqus no tseem muaj ntau heev.