他的声音自天花板顶处反射回来。

His voice reverberates from the high ceiling.

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他的自行车用辘轳挂在床顶的天花板下。

Over the bed, hoisted by a tackle to the ceiling, was his bicycle.

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索莱依多克号使用两个，各8千瓦的水中引擎，引擎电力来自船顶的太阳能板，再储存在两个大电池内。

The Soleil d'Oc uses two submerged engines of 8 kilowatt each totally fed by the solar power collected by the roof panels and stored in two big batteries.

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