Turbines run most efficiently at high speeds, and fans at low speeds, so turbofan engines have to compromise between the two, because the engine's design requires them to turn at the same speed.

涡轮在高速运行的时候效率更高，而风扇在低速时效率更高，因此涡扇发动机需要在这两者间达到拖鞋，因为发动机的设计需要他们以相同的速度运行。

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But Sawyers Hall's turn of speed came too late: children were already flocking to Shenfield High.

索耶·斯霍尔尽管快速扭转局面，也为时已晚：孩子们已经蜂拥涌入申菲尔德高中。

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This basic functionality, when built over clusters, can easily turn into a high-speed parallel processing system.

这个基本的功能如果构建在集群之上，就可以很容易转变为高速并行处理系统。

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In 1988, Pierre Mauroy, the city's mayor and a powerful figure in France's Socialist Party, engineered the routing of a new network of domestic and international high-speed train services through Lille and used that coup to turn the city into a logistics and service hub.

ECONOMIST: Urban regeneration

Anyway, when MPs have got those issues off their chest, they can turn to a general debate on HS2 - the controversial plan for a high speed railway from London to Birmingham, and eventually Manchester.

BBC: Viewing guide: The coming week's highlights in Parliament

This is clearly a problem today as more and more of us turn to our mobile devices to satisfy our ravenous appetites for instantaneous connectivity and high-speed wireless data transfers.

FORBES: What Do The Titanic And Your Smartphone Have In Common?