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上海曼億包裝機械有限公司是以粉體顆粒物料包裝設備研發、生産、銷售爲主的企業,主要從事粉料包....[詳細]

If I were to summarize in one sentence the single most important principle I have learned in the field of interpersonal relations, it would be this: Seek first to understand, then to be understood. This principle is the key to effective interpersonal communication - Stephen Covey, Author