Puas yog qhuav lwv cov cim tawm los nrog dej?
Qhuav-erase markers yog insoluble, uas txhais tau hais tias lawv tsis yaj nyob rau hauv cov kua li dej. Tab sis lawv yooj yim rau lwv.
Sau koj cov lus ntawm no thiab xa tuaj rau peb
Qhuav-erase markers yog insoluble, uas txhais tau hais tias lawv tsis yaj nyob rau hauv cov kua li dej. Tab sis lawv yooj yim rau lwv.
