这个盒子从侧面看是个梯形。

The box looks like a ___trapezoid when viewed from the side.

在英国早期的几何学教材中，梯形被定义为没有任何一对平行边的四边形。

In early British geometry textbooks, a ___trapezoid was described as a quadrilateral with no pairs of parallel sides.

医生发现她的斜方肌有些肿胀。

The doctor noticed some swelling in her ___trapezius.