1. The calceiform floral structure of certain orchids is highly adapted for pollination by specific bees.
某些兰花的鞋状花部结构非常适应特定蜜蜂的授粉。

2. The leaves of this plant are calceiform, resembling the shape of a shoe.
这种植物的叶片呈鞋状，形状像鞋子。