Old Faithful geyser is the most famous.

老实间歇泉是最著名的.

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What is Old Faithful and why have millions of people traveled to Wyoming to see it?

什麽是老实泉?为什麽有数以百万的人涌入怀俄明来看它?

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There we saw American bison, elk, mountains, hot springs, and the Old Faithful geyser.

在那儿我们看过北美野牛, 麋, 山, 温泉, 和“老忠实”喷泉.

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Every 70 minutes, Old Faithful sends hot water about 150 feet high into the air.

每隔70分钟, 老实间歇泉就把热水喷到150英尺高的空中.

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