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一年一度的美国PMA(Photo Marketing Associa-tion International,美国国际影像器材贸易博览会)始创于1924年,被全球的专业摄影人士称为每年年初的器材盛宴。
The annual Photo Marketing Association of America (PMA) was founded in 1924 and is known by professional photographers around the world as a fixture at the beginning of each year.