pole star
参考词典中pole star的常规释义：
基本释义
- n. 〈天〉极星，北极星
英英解释
1个名词解释
- the brightest star in Ursa Minor; at the end of the handle of the little dipper; the northern axis of the earth points toward it
[同] north star, polar star, polaris, pole star, polestar
点击查看……- the brightest star in Ursa Minor; at the end of the handle of the little dipper; the northern axis of the earth points toward it
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