Tsev > Xov xwm > Cov ntsiab lus

Txawj txhais tau cov laub

Ib tug ntawm cov peb-wheeled tsheb, four-wheel laub muaj ob yuav tig ib ncig taw ntsug qeeb mentshis. Cov castor rau hauv kev khiav nrog cov kev hloov ntawm lub tsheb zog lawm thiab tau kho los kuj muaj nyob rau hauv cov kev taw qhia txog kuj tsawg.