The train is travelling at a speed of sixty miles an hour.

火车正以每小时六十英里的速度行驶。

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The train from Jakarta was travelling at high speed, officials said.

官员宣称这个从雅加达的车是高速运行的…

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The train was travelling at full speed.

火车正全速前进。

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The train was travelling at full speed.

火车正全速前进。

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