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pole star

/ˈpəʊl stɑːr/

翻译: 指位于北天极附近的一颗亮星,即北极星(勾陈一),可用于导航和在夜空中作为固定参考点;也泛指任何一颗位于天极附近、看似不动的星。

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phrase

/ˈpəʊl stɑːr/B2formalscientific
  • zh指位于北天极附近的一颗亮星,即北极星(勾陈一),可用于导航和在夜空中作为固定参考点;也泛指任何一颗位于天极附近、看似不动的星。

A bright star located nearly at the north celestial pole, used for navigation and as a fixed point of reference in the night sky.

  1. Guiding starB2formal

    A bright star that appears to be directly above the Earth's North Pole, used for navigation.

    zh北极星

    • Sailors used the Pole Star to navigate across the ocean.
    • The Pole Star is also known as Polaris.
    • In the Northern Hemisphere, the Pole Star remains fixed in the sky.
  2. Guiding principleC1formal

    A principle or person that serves as a guide or source of direction.

    zh指路明灯

    • Honesty was his pole star throughout his career.
    • The company's mission statement acts as a pole star for decision-making.
    • She considered her grandmother her moral pole star.