2-yob dov rolling zeb

Ib 2-yob dov zeb yog lub zeb yob yog ob tug kab rov tav tau npaj ntsug hauv tib lub dav hlau, tsuas yog siv rau cov xo hlau. Qhov 2-yob dov zeb muaj cov qauv yooj yim thiab ua haujlwm txhim khu kev qha. Nws yog tsav los ntawm DC lub cev muaj zog thiab siv nyob rau hauv ob lub yob thim rov qab rouging zeb. Nws tuaj yeem siv cov hlau mus rau hauv cov plaub hau ntau yam. Ib qho chaw txuas ntxiv ua ke yog tsim ntawm ob peb lub hauv paus thib 2 uas tau tsim los ntawm cov pab pawg, uas tuaj yeem tsim cov hlau bille thiab cov khoom siv muaj cov khoom lag luam zoo