These man-made systems include showers, a pools, fountain, and air conditioning cooling towers.

这些系统包括淋浴器、泉池、泉以及空调设备的冷却水塔。

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These man-made systems include showers, a pools, fountain, and air conditioning cooling towers.

这些系统包括淋浴器、泉池、泉以及空调设备的冷却水塔。

youdao