pole star
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pole star — 名詞
1. the star that is closest to the North celestial pole
1.名詞
釋義
北極星
the star that is closest to the North celestial pole
例句
Sailors used the Pole Star for navigation.
2. a guiding principle or leader
2.名詞
釋義
指導原則
a guiding principle or leader
例句
Justice was the pole star of his political career.