她很快了解到7岁的希马是靠卖石头来养家的。
She soon learned that 7-year-old Hima sold the rocks to support her family.
在秘鲁安第斯山脉东部的马丘比丘古城遗址中，可以看到世界上一些最精美的石头建筑。
Some of the world's finest stone architecture can be seen in the ruins of the ancient Inca city of Machu Picchu high in the eastern Andes Mountains of Peru.
而罗赖马洞穴的石头却主要是硅酸盐，火星上发现的也是硅酸盐。
The rock of Roraima, however, is mostly silicate, which is also found on Mars.
应用推荐