William Dobbs Sprachen
영어 발음을 알아듣는데 도움을 줍니다.
PoetaZurdo
Buensoft
P. J. Heslin
ABAEnglish.com
conjuga.de
RWF Talking Software
NarDictionary.com
ABA English
Catalina Moreno Escobar
Discovery Educational Software
Coccinella Development, Inc.
Visual Pronunciation Software
PROMT
Custom Solutions of Maryland
Lingoversity.com
Eugene Troitskiy
