Once, a friend had taken him to Chihtuan, the highest point of the Northern Cross-Island Highway. Workers were in the process of laying asphalt when he suddenly saw a single broad-tailed swallowtail, hovering over the surface of the road, perhaps attracted by the scent of the asphalt.
一回，朋友載他到北橫池端一帶，路面正在舖柏油，忽然看到一隻似乎被柏油焦味所吸引的寬尾鳳蝶在盤旋。