1. Lub saw yog dhau mus hnav, thiab qhov kev ncua deb ntawm ob tus hniav tsis nyob hauv qhov ntau me me, yog li nws yuav tsum tau hloov;
2, cov saw hlau muaj ntau ntu tau raug mob hnyav, tsis tuaj yeem kho qee yam, yuav tsum hloov los ntawm txoj saw tshiab.
