在一篇刊登在《地球物理研究快报》(Geophysical ResearchLetters)杂志上的新论文中，罗博克和他的同事称每年投“几十亿”美元就能干成这件事。
In a new paper in the journal Geophysical Research Letters, Robock and his colleagues say it could be done for "several billion" dollars a year.
在一篇刊登在《地球物理研究快报》(Geophysical ResearchLetters)杂志上的新论文中，罗博克和他的同事称每年投“几十亿”美元就能干成这件事。
In a new paper in the journal Geophysical Research Letters, Robock and his colleagues say it could be done for "several billion" dollars a year.
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