They are researching on a new type of railway engine.

他们正在研制一种新型的火车头。

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An engine is coupled to a railway train.

火车头与车厢挂在一起。

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I prefer to sit (ie in a railway carriage) facing the engine.

我喜欢面朝机车坐(在火车车厢里)。

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I prefer to sit (ie in a railway carriage) facing the engine.

我喜欢面朝机车坐(在火车车厢里)。

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