Bearded and looking tired, a clearly emotional Lewis crossed the Greenwich Meridian line at the Royal Observatory by carrying his boat with the help of supporters and cheering well-wishers.
显然是会情绪溢于言表的刘易斯留着胡须，神情疲惫。在他的支持者和热心人们的帮助下，他抬着自己的船穿过位于皇家天文台的格林尼治子午线。
Greenwich thus became established as the location of the prime meridian of longitude, and the base line for calculating time zones around the world.
由此格林威治不仅作为起初子午线的所在地，也成为全球计算时区的基准线。
The Greenwich meridian was adopted in 1884 by the International meridian Conference as the line with zero degrees of longitude.
国际本初子午线大会于1884年把横过英国格林尼治天文台的一条经线定为参考线，在该线上经度为零。
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