| 单词 | the prime meridian |
| 释义 | the prime meridian noun only singular specialized ■the imaginary line from the North Pole to the South Pole that passes through Greenwich in England and marks 0° longitude, from which all other longitudes are measured 本初子午线（从北极到南极的一条假想线，穿过英格兰的格林威治，定为经线0°，其他经线以此为测定标准） |
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