It has been eight weeks since I finished my second Ironman Australia triathlon in 11 hours and 58 minutes, which was 15 minutes faster than the year earlier.

距离我第二个澳大利亚铁人赛已经过去八周了，在比赛中我取得了11小时58分的成绩，比我今年早些时候的成绩快了15分钟。

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The second week was set in Denver; here the contestants were given forty-eight hundred dollars and forty-eight hours, and told to go find their own stranger to help out.

第二集在丹佛录制，参赛者每人有4800美元，但是时间却更少，他们要在48小时内找出需要帮助的陌生人并解决他们的困难。

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The shuttle takes about 1.5 hours to go around and the speed, that tangential speed, is very close to eight kilometers per second.

飞机需要一个半小时,且其切向速度，非常接近8千米每秒。

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Mr. GLEN FOUNTAIN (Johns Hopkins Applied Physics Lab): Leaving Earth, the New Horizons will be traveling at eight miles per second, and eight hours later, the spacecraft will pass the orbit of the moon.

NPR: NASA Sends Spacecraft to Pluto

"A lot of people don't correctly choose what tires should be on their car, " says Unser, who drove the 24 Hours of Daytona car race eight times and finished second in the 24 Hours of Le Mans.

FORBES: Cars