adj. trapezoidal ; trapeziform
在上海环球金融中心（SWFC）顶部，彩灯围绕着梯形的开口舞动。
Fairy lights dance around the trapezoid opening at the top of the Shanghai World Financial Center (SWFC).
每隔两层，每幢建筑曲线梯形的两条不相等的短边就会改变其几何形状。
The two unequal shorter sides of the curvilinear trapezoid of each building change their geometry every two floors.
这座房子的独特之处在于阶梯形的屋顶。
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