Kev ua haujlwm kom tsim nyog ntawm lub qhov rooj qhov rooj tub yees lossis lub tub yees txias yog qhov tseem ceeb, thiab kev ntxuav yuav tsum yog qhov tseem ceeb rau kev ua haujlwm kom ua haujlwm. Yog tias tsis muaj kev ntxuav, av, hmoov av, thiab gime yuav txhim tsa, thiab yuav ua rau muaj kev ua tsis tau zoo. Raws qab
Kawm txog Fridge rooj iav: ib qho kev tsom xam dav dav, thev naus laus zis tau ua tiav cov kev daws teeb meem kev lag luam tub yees yog lub tswv yim ntawm lub fridge rooj iav. Kab lus no delve
Mastering txoj kev kos duab ntawm kev tswj hwm ob chav ci iav Sliding Didingdouble, muab kev sib xyaw ua ke, kev txuag hluav taws xob, thiab kev ua haujlwm zoo. Lawv ua haujlwm ua kev sib xyaw ua ke