Adrian Mann, definitely the world's youngest piano maker and possibly New Zealand's youngest inventor has completed the world's largest and longest piano.
阿德里安曼恩，无疑是世界上最年轻的钢琴制造商，并可能新西兰历史上最年轻的发明家已经完成了世界上规模最大，时间最长的钢琴。
Adrian Mann, definitely the world's youngest piano maker and possibly New Zealand's youngest inventor has completed the world's largest and longest piano.
阿德里安曼恩，无疑是世界上最年轻的钢琴制造商，并可能新西兰历史上最年轻的发明家已经完成了世界上规模最大，时间最长的钢琴。
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