TWS muab koj li 100% kev tiv thaiv:
(1) 100% Kev tiv thaiv kev tiv thaiv
(2) 100% Cov khoom tiv thaiv zoo
(3) 100% On-lub sij hawm cov zaub mov xa tuaj tiv thaiv
Peb tus yam ntxwv: cov khoom lag luam zoo, lub thev naus laus zis feem ntau, qhov kev pabcuam zoo tshaj plaws
