Cov rooj lag luam ua lag luam, raws li lub npe cuam tshuam, yog lub qhov rooj uas tau tsim tshwj xeeb tsim rau cov laj thawj lag luam. Lawv feem ntau yog siv rau hauv cov tsev kawm ntawv, chaw ua haujlwm, khw muag khoom, tsev kho mob, chaw tsim khoom lag luam, thiab lwm lub tsev lag luam. Cov qhov rooj no yog tsim nrog cov qhov chaw nyob ntau dua li cov rooj thaj chaw kom muaj peev xwm tiv thaiv kev nyab xeeb thiab kev tsim txom ntau dua.
Yog tias koj xav paub ntau ntxiv txog peb cov hluav taws kub qhov rooj hluav taws kub lub qhov rooj thiab sab hauv qab ntawm Alibaba21222222.4d611f5deodayq
