Dr.Sarah Barnes, a Canada Research Chair in Magmatic Metallogeny at the University of Quebec in Chicoutimi, talks about the possibility of a gigantic super-volcano blowing us to smithereens.是什么意思_Dr.Sarah Barnes, a Canada Research Chair in Magmatic Metallogeny at the University of Quebec in Chicoutimi, talks about the possibility of a gigantic super-volcano blowing us to smithereens.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句