Warning
1.Cov khoom no yog cov khoom siv pov tseg, yog li nws yog txwv tsis pub rov siv dua. Tom qab siv, nws yuav tsum tau kho raws li kev kho mob pov tseg;
2. Ua ntej siv, thov ua tib zoo saib seb lub ntim thiab cov khoom puas puas lossis muaj lwm yam tsis xws luag. Thov xyuas seb cov khoom puas nyob hauv lub sijhawm siv tau. Yog tias nws dhau lub sijhawm siv tau, thov tsis txhob siv nws.
3. Thov nyeem cov lus qhia cuam tshuam ua tib zoo ua ntej siv, thiab paub txog cov lus qhia thiab kev ua haujlwm ntawm cov khoom.
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