It took two and half hours to buy ticket, waited in long long line, security checks, boarded on.

从购票到排队、安检、登船，硬是用去了两个半小时。

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Two and half hours later, after an excruciating silence, Dahl discovered that his niece had survived.

经过两个半小时的痛苦而沉默的等待，达尔发现他的侄女还活着。

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In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.

1981年，美国儿童平均每周花在家务上的时间略少于两个半小时；到1997年，这个时间达到近6个小时。

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Passengers will pay two hundred thousand dollars to ride to outer space and back for two and a half hours.

VOA: special.2009.12.18

And if you are prepared to stand up for about two and a half to three hours to watch a play,

而且你要准备好了站上大约两个半小时到三个小时，去看一场戏剧，

莎士比亚环球剧院 - SpeakingMax英语口语达人

So I could do that in probably two and a half hours.

我可以用大约两个半小时的时间走完这段路程。

旧金山的公共交通 - SpeakingMax英语口语达人

The stew needs to cook on the stove for about two and half hours, or until the beans are just soft and creamy inside but still hold their shape.

WSJ: The Feijoada From Ipanema

The fog in fact delayed the start of play for two and half hours, but India, who led by 285 overnight, chose to give Gautam Gambhir and Yuvraj the chance to try and complete hundreds, rather than declare.

BBC: SPORT | Cricket | England | Dhoni defends delayed declaration

It sounds a little bit sad so far but hardly any celebrating's been done so far, been doing quite a lot of media work, I spent the last two and half hours with my family and some relatives out here in Australia but the celebrations haven't really started yet.

BBC: News Online