n.直升机起飞及降落场，直升机停机坪
On the roof of this building is located a helipad for the Statewide Trauma Service.
这个大厦屋顶位于一个停机坪为全州精神创伤服务.
A swimming pool that drains to reveal a helipad?
排干水后成为直升机停机坪的游泳池?
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