Your most unhappy customers are your greatest source of learning.
最不开心的顾客是你最大的学习资源。
-- Bill Gates 比尔·盖茨
Your most unhappy customers are your greatest source of learning.
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Your most unhappy customers are your greatest source of learning.
最不开心的顾客是你最大的学习资源。
-- Bill Gates 比尔·盖茨
