嗯，呃，哦，啊 음어오아

Bockey LEE, President of “Tong Hal Tong (go through,)” Communication, is a linguist and anthropologist who created the “MM, UH, OH, AH” conversational method for modern people. And now he's celebrating the 13th anniversary of the MM, UH, OH, AH dialectic with a series of private lectures. Sing along to “MM, UH, OH, AH,” a magical dialog for modern people who are tormented by th...