英汉例句双语例句A river, about 965 km (600 mi) long, of northern Bolivia flowing partly along the Brazilian border to join the Beni River and form the Madeira River.玻利维亚北部的一条河流，流程约965公里（600英里），部分河段沿玻利维亚-巴西边境流淌，而后与贝尼河汇合形成马德拉河。