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polar

B1 noun

polar /ˈpoʊlɚ/ nghĩa là đường đối cực

Các nghĩa

  1. đường đối cực

    The line joining the points of contact of tangents drawn to meet a curve from a point called the pole of the line.

    Polar bears live in the Arctic.

    Polar bears are white because they're old bears.

    The aurora is a phenomenon characteristic of the polar regions.

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