3 phau ntawv zoo tshaj los ntawm Richard Dübell
Qhov xwm txheej ntawm cov kws sau ntawv zoo li Richard Dübell nws ib txwm yooj yim dua los tsim kuv qhov qeb duas ntawm lawv peb qhov kev sau ntawv zoo tshaj plaws. Tus kws sau ntawv German no tau mob siab rau nws tus kheej tag nrho rau kev sau ntawv, tab sis qhov tseeb yog nws tau ua li ntawd los ntawm kev ua txhaum. Qee zaum nws tshwm sim tias ...