Energy drinks contain complex carbohydrates - a blend of slow -, medium - and fast-acting sugars - and are able to supply energy to the body over an extended period of time.

能量饮料含有复杂的混合缓慢，中期和快速署理糖，并能供应能量的碳水化合物，以身体一个较长时期内的时间。

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In other words, the duration of time between two events can vary depending on how fast you are moving in the period between the events.

换句话说，两件事情间隔的时间根据我们在这两件事情间的移动速度来决定。

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In 1209 in Pisa, Leonardo of Pisano, also known as "Fibonacci, " used his skills to answer a math puzzle about how fast rabbits could reproduce in pairs over a period of time.

在1209年的比萨城， Leonardo Pisano，又名“斐波那契”（Fibonacci），解决了一个数学谜题。 题目是计算一对兔子在一段时间内成对繁殖的速度。

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"I think Dubai went a little bit too fast and they borrowed too much money in a very short period of time."

VOA: special.2009.12.04

Instagram is one of a cohort of young start-ups that have built products around the iPhone and have registered fast growth in a short period of time.

WSJ: Facebook to Buy Instagram For $1 Billion

You could correlate her time as CFO of Citigroup to the same time period when CDOs were being sold to unsuspecting investors as fast as possible.

FORBES: Magazine Article