Lub taub hau qis hluav taws xob saw hoist yog ib hom khoom nqa nqa uas muaj qhov zoo ntawm kev ua kom muaj zog, kev nyab xeeb siab, kev saib xyuas yooj yim, thiab siv tau yooj yim. Nws qhov txiaj ntsig loj tshaj plaws yog tias nws tuaj yeem siv qhov chaw zoo tshaj plaws thiab tuaj yeem siv rau hauv qhov chaw qis dua. Nws tuaj yeem ua haujlwm siab tshaj plaws thiab tsim nyog rau lub sijhawm uas muaj chaw ua haujlwm tsawg.
Tsev
