Gianna Fantell, 15, presented the results of her serpentine research, here, at the Intel International Science and Engineering Fair.
15岁的吉安娜·范泰尔，在英特尔国际科学与工程博览会上，展示了自己对蛇纹石的研究结果。
Gianna Fantell, 15, presented the results of her serpentine research, here, at the Intel International Science and Engineering Fair.
15岁的吉安娜·范泰尔，在英特尔国际科学与工程博览会上，展示了自己对蛇纹石的研究结果。
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