Kệ sách · NgheHandling Complaints处理投诉B2 Trung cao cấp · EnglishJoy Studio · B2EpisodesStay Calm First — 先保持冷静Firm but Polite — 礼貌且坚定Offering Solutions — 提出方案Follow Up — 跟进Complaint Skills — 投诉沟通技巧