n.片麻岩(一种艰硬的岩石)
Gneiss is called bastard granite. 片麻岩叫作粗花岗岩。
Gneiss, a metamorphic rock, can be commonly found in Precambrian areas. 片麻岩，一种变质岩，通常在前寒武纪地层中出现。
