Arctic Circle
The parallel of latitude approximately 66°34′ north, the southern boundary of the North Frigid Zone, marking the approximate limit north of which the sun remains above the horizon all day on the summer solstice.
Arctic Circle
| 单词 | Arctic Circle |
| 释义 | Arctic Circle The parallel of latitude approximately 66°34′ north, the southern boundary of the North Frigid Zone, marking the approximate limit north of which the sun remains above the horizon all day on the summer solstice. Arctic Circle |
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