si·er·ra /siˈɛrə/
呈齒狀起伏的山脈
Si·er·ra n. A ridge of mountain and craggy rocks, with a serrated or irregular outline; as, the Sierra Nevada.
The wild sierra overhead. --Whitter.
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sierra
n 1: a range of mountains (usually with jagged peaks and
irregular outline)
2: a Spanish mackerel of western North America [syn: Scomberomorus
sierra]