Hangtian Lub Khw Muag Khoom Nyob Sab Hauv Tsev thiab Sab Nraud Sab Nraud Chaw Ua Si Chaw Caij Tsheb Bumper Lub Tsheb Bumper Lub Tsheb kuj tseem hu ua bumper karts lossis bumper lub tawb nqa khoom, yog hom kev caij tiaj tus, siv fais fab. Bumper lub tsheb yog nruab nrog kev tshaj tawm suab, lub teeb pom kev zoo, sijhawm. Tsuas yog xav tau ob peb lub tsheb bumper thiab qhov chaw nyob sab hauv, koj tuaj yeem pib ua lag luam. Nws yog kev lom zem tsav tsheb indiscriminately los ntawm sab laug rau xis. Ntsej muag sib cav nrog tus yeeb ncuab tsuas yog tus yeej muaj yeej xwb. Bumper tsheb zoo siab tos txais los ntawm cov neeg los ntawm thoob plaws ntiaj teb. Peb muaj peb hom b ...