Lus piav qhia luv luv:

Cov khoom siv: Ua los ntawm cov khoom siv PE, lwm cov ntaub ntawv tuaj yeem kho.
Xim: Dawb, dub, thiab lwm yam xim tuaj yeem kho.
Khoom siv: Raws li kev tiv thaiv ntawm cov xaim hluav taws xob, nws tsis hnav thiab rwb thaiv tsev, thiab nws tuaj yeem txhim kho cov tsos ntawm cov hlau bendingl
Yuav siv li cas: Nrog kev tiv thaiv txoj hlua khi ntawm qhov pib kawg, tom qab ntawd cov hlua khi hlua tuaj yeem ua ke nrog lub voj voog clockwise, Yog tias cov khoom yooj yim raug tshem tawm thaum siv qhov kev hloov pauv, lub nras quab yuam yuav tsis hloov thaum lub qub yob band rov qab siv dua.

cov