It was initially inspired by a photo of a girl standing in front of a door holding a paddle.

该片最初的灵感来自于一幅手握球拍站在门前的女孩照片。

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A push or pull on the paddle using an elbow or forearm will open the door, preventing contamination from unsanitary hands in restrooms or cafeterias, for example.

用手肘或前臂在开关上一推或一拉，门就会打开，这样就会避免手上的脏物沾到门上，留在休息室或是餐厅里。

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