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Last name Ruiwa (Ruiwa ) , across the world, is an extremely rare family name. Predominantly, Ruiwa is the forename as well as the last name.
汭华, 瑞华, 瑞娃, 瑞瓦, 睿华, 睿娃, 芮华, 蕊华, 蕤华, 锐华, and 锐娃
Ma, and Yu