不过它是不是工程师的最后的王牌，就像单原子极限织机（此处有疑问，不知怎么翻译，请指教），还有待考察。

Whether it would be the last one up the engineers’ sleeves, as the single-atom limit looms, remains to be seen.

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但从他最后的话语中我找到了我可以珍存的王牌。

But in his final words I found an ace that I could keep.

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在他的最后一句话中，我找到了一张自己能掌握的王牌。

And in his final words I found an ace that I could keep.

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