Lus piav qhia luv luv:
Khoom taw qhia txog 1.Lub ntsiab tseem ceeb ntawm cov khoom muaj zog cam khwb cia hlau thiab tshwj xeeb hlau.2.Los ntawm cov cuab yeej tshwj xeeb los xyuas kom meej kev ua haujlwm tas mus li, cov khoom siv zoo nkauj zoo nkauj.3.Spindle zoo, chaw nres tsheb (nres), kis tau tus mob, ua haujlwm pub dawb, nrog kev tswj tuav, ua haujlwm yooj yim dua thiab sai.4.Rocker qhia kev tsheb nqaj hlau, sab nrauv sab nrauv, ntxaiv, lub tes tsho spindle thiab ...