예습시간이 여유로울수록 얻어가는게 많다. 오늘 비교적 여유롭게 예습을 했더니 훨씬 더 안정적인 느낌. [유폰] Handling Customer Complaints What can I do for you. This is NAME. I'm very sorry about that. What can I do? Let me look into the problem and get back to you right away. Could I call you back in about ten minutes? Yes, please do. When it comes to, To be more precise, It's a double-edged sword. He wants the new fixed ones as soon as pos..