polar

/ˈpoʊlɚ/ 名词 C2

中文：极线

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

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To combat the inevitable melancholy that accompanies the polar night, we prioritize communal activities and mutual support.

I frequently find myself gazing out the heavily insulated windows into the absolute void of the polar night.

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