Now you know why General Motors has introduced expensive Saturns and cheap Cadillacs.

现在，你知道通用汽车为什么会推出昂贵的土星和便宜的凯迪拉克了吧，更不用说该公司旗下其他品牌所犯下的种种错误。

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If they looked up, they would see the two Saturns crossing the sky every 1.6 days, appearing half as large as the moon.

这些外星人仰望天空时，他们将会看到两颗土星每隔1.6天，交替在天空中划过，大小只有月亮的一半大。

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But because the Saturns would rise at different times every night, the hypothetical alien civilization would have a hard time using its companion planets to tell time or create a calendar.

但由于木星每天晚上升起的时间不同，这些想象中的外星人，将很难划定时间，或制订日程表。

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But because the Saturns would rise at different times every night, the hypothetical alien civilization would have a hard time using its companion planets to tell time or create a calendar.

但由于木星每天晚上升起的时间不同，这些想象中的外星人，将很难划定时间，或制订日程表。

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