the billion dollar question 非常重要的问题 BBC六分钟英语听力精选:,Multi-million,dollar,sound,百万之声,,,,,_BBC六分钟英语听力精选_听力节目_英语听力,million dollar b...
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The billion-dollar question is how?
价值数十亿美元的问题是：以什么方式？
That's a billion dollar question or least will become one by the time we even have a good working prototype.
这是个数十亿美元的问题，或至少我们届时将有一个能够很好工作的原型。
Now, don't ask me what's the cost and time overrun in LCA. That's another billion-dollar question.
现在不要问我LCA的费用和时间超出预算，那是另一个数十亿美元的问题。
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