I turn on the engine impatiently. I'm fiddling with the radio when I hear something.

我不耐烦地开着发动机，调试电台听着一些东西。

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Turn on the engine. Release the parking brake and select the correct gear to move back onto the road.

启动发动机。松开刹车制动并选择正确的档位驶回公路。

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Mozilla revealed preliminary plans today to take the Gecko engine that drives its Firefox browser and turn it into an open-source operating system that will eventually work on phones and tablets.

Mozilla今天表示初步计划将驱动Firefox的Gecko引擎打造成一个开源的操作系统，未来将工作在手机和平板电脑上。

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Inside the car, they should open a window a little for fresh air and turn on the engine for ten or fifteen minutes every hour for heat.

VOA: special.2010.01.05

When controllers sent commands to the engine to turn itself on again last Tuesday, they planned to collect more data on the status of the system but believed it was unlikely the engine would keep running.

CNN: Deep Space probe's ion engine working smoothly, NASA says

It was three o'clock in the morning when Graham fired up the engine, and as the frost glistened on the young fruit, the giant rotor began to turn.

BBC: Graham Hewitt and his wind machine