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業界良心 [yè jiè liáng xīn] adj./n. Industry+conscience. Of the industry standard.

Wallace Chung Fan Family:

You guys are definitely not a giveaway for prepaying the phone bills. You are absolutely the industry standard fanbase.

@钟汉良W良家族:

大家肯定不是充话费送的粉,是赤果果的业良粉。