longitude meridian的用法和樣例：
例句
- What interested her most was the longitude line.
她最感興趣的是那條經(jīng)線(xiàn)。 - Just down the road is the national observatory at Greenwich, which houses the Meridian Line and forms the standard from which the world's time zones are set.
順道而下便是穿過(guò)格林尼治子午線(xiàn)的格林威治國家天文臺，且世界的零度經(jīng)線(xiàn)以此而劃分。
