饭店的床不足三英尺宽、六英尺长。

The hotel bed is less than 6 feet by three.

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沿着它突起的后背下来，是一排巨大的刺——每根都有六英尺长。

Protruding down his back is a giant row of spikes - each as tall as six feet.

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这位瑞士的飞行员发明了一对六英尺长的碳纤维翅膀，由四个小型喷气式引擎提供动力。

This Swiss pilot flings himself out of an aircraft wearing a six-foot-wide carbon-fiber wing of his own invention, powered by four tiny jet engines.

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Its length might be anywhere from six to eight feet in length.

这种武器大概长六到八英尺

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