sierras的翻译，读音
英/ˈsiərəz/
释义：
n. 齿状山脊, 马鲛( sierra的复数形式 )
n. a range of mountains (usually with jagged peaks and irregular outline)
n. a Spanish mackerel of western North America
n. a range of mountains (usually with jagged peaks and irregular outline)
n. a Spanish mackerel of western North America