You should never yell at your customers. Your bad attitude may make them angrier.n
你絕對不能對顧客大小聲 你惡劣的態度讓他們更生氣(A) discourage 使沮喪(B) praise 讚美(C) yell 吼(D) persuade 說服
You should never ________ at your custo..-阿摩線上測驗