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Kev cuam tshuam ntawm kev ziab ntawm cov khoom siv thiab kev faib tawm
1. Tus nqi ziab ntawm cov khoom siv ziab 1. Qhov hnyav poob los ntawm cov khoom siv hauv chav tsev lub sij hawm thiab chav tsev yog hu ua tus nqi ziab. 2. Kev ua kom qhuav. ● Lub sijhawm pib: Lub sijhawm luv luv, txhawm rau kho cov khoom kom zoo ib yam li lub tshuab ziab khaub ncaws. ● Lub sijhawm ceev ceev: Th...Nyeem ntxiv