Self-tapping Ntsia Hlau

Peb muaj pab pawg ua lag luam, muab cov neeg siv khoom nrog tus nqi qis tshaj plaws thiab cov khoom zoo tshaj plaws, kom ntseeg tau cov neeg siv khoom txaus siab, peb tuaj yeem ua raws li cov neeg siv khoom xav tau.