Voltan.
英 美 'vɑltə
中文n. 伏打（意大利物理学家）；沃尔特（湖）
词根词源
VoltaWest African river, from 15c. Portuguese Rio da Volta, literally "river of return" (perhaps because it was where ships turned around and headed for home) or "river of bend," in reference to its course.
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