释义
a river in Siberia, which rises in the mountains on the western shore of Lake Baikal and flows for 4,400 km (2,750 miles) into the Laptev Sea. It is famous for the goldfields in its basin.
勒拿河（在西伯利亚，源自贝加尔湖西岸山中，注入拉普帖夫海，全长４，４００ 公里，即２，７５０英里，以流域中金矿著名）。