本初子午线 běnchūzǐwǔxiàn prime meridian Definitions Defs Origin Strokes Stroke Words Sentences Sents 本初子午线 本初子午線 běnchūzǐwǔxiàn prime meridian The first meridian on the Earth from which longitude is measured, specifically the line passing through Greenwich in London
本初子午线 本初子午線 běnchūzǐwǔxiàn prime meridian The first meridian on the Earth from which longitude is measured, specifically the line passing through Greenwich in London
