龟背

guībèi

龟背 — guībèi

1. the back of a turtle; the turtle's shell (dorsal surface); used figuratively for a convex, ridged surface resembling a turtle's back

   这只乌龟的龟背上有明显的纹路。 zhè zhǐ wūguī de guībèi shàngyǒu míngxiǎn de wénlù — The back of this turtle has distinct ridges.