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?
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.
After the rescue got under way Thursday afternoon under bright blue skies, video footage showed the twin-blade helicopter touching down gingerly on the makeshift helipad.
周四下午救援行动开始,录像片段显示,这架双叶直升机谨慎地降落在临时停机坪上。
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