However, getting enough antimatter for the 26 trillion-mile, one-way trip to Alpha Centauri and storing such a volatile fuel for long periods is prohibitively expensive and difficult.
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释义
然而,要到达26万亿英里之外的半人马座阿尔法星,携带和储存足够量的反物质难度极大,这种燃料不仅状态不稳定,而且耗资不菲。
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