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A serious attempt at interstellar communication would be very expensive.
作一次星际通信的认真尝试可能很费钱。
youdao
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The real problem of interstellar communication does not concern technology.
星际通信的实际问题不在于技术。
youdao
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The real problem of interstellar communication does not concern technology.
星际通信的实际问题不在于技术。
youdao