奎多a·门齐奥忙于运算出一道数学题，在飞机降落到锡拉丘兹后，他将发表一个演讲。
Instead of idle chit chat, Menzio worked on a math equation for a speech he was due to give after landing in Syracuse.
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他算出了一道数学题。
He has worked out a mathematical problem.
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