Lub tshuab hluav taws xob yooj yim ntawm cov tsheb
Cov Ntsiab Lus Tseem Ceeb ntawm Cov Tshuab Hluav Taws Xob Rau Tsheb Lub tshuab hluav taws xob yog ib qho ntawm cov tshuab tseem ceeb tshaj plaws hauv cov tsheb siv roj av (Otto cav). Nws lub luag haujlwm tseem ceeb yog tsim hluav taws xob thaum lub sijhawm zoo los hlawv cov pa roj sib xyaw hauv chav hlawv. Yog tsis muaj lub tshuab hluav taws xob ua haujlwm zoo, lub cav yuav nyuaj rau pib, thiab lub zog yuav ploj mus... Nyeem ntxiv