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- frontier boundary river 国境界河
- A boundary river He drinks rivers of tea every day. 他每天喝大量茶水。
- The Congo River (Zaire-River) is the boundary river between Angola and Congo gold (original Zaire). 主要河流有库邦戈河、宽扎河、库内内河和宽多河。
- The Congo River (Zaire River) in the north serves as the boundary river between Angola and The Democratic Republic of the Congo (former Zaire). 北部的刚果河（扎伊尔河）是安与刚果金（原扎伊尔）之间的界河。
- Due to province boundary river is a outwardness ，the contradiction between the development of water resources and utilization is outstanding increasingly . 流域内各省区的自然地理、社会经济等状况差异较大，随着水资源日益成为稀缺资源，水量分配既要考虑满足当前的用水，又要考虑各省今后的发展情况，以尽可能使水量分配达到高效、经济、公平以及省际协调发展的良好局面。
- Frontier ports"means international seaports, airports, railway or bus terminals on the border, and ports of entry at land frontiers and boundary rivers. 国境口岸”指国际通航的港口、机场、车站、陆地边境和国界江河的关口。
- Xu River Township for the two boundary rivers, this bridged the two Habitat, the Habitat named the bridge. 胥塘河为两乡的界河，此桥连两境，故命名为安境桥。
- Boundary river in Hong River state has existing problems concerning deficiency of hydrometric network,simple and crude equipment of automatic measuring and forecasting system for water regime. 红河州国际跨界河流存在水文站网不足,水情自动测报设备简陋等问题,为满足国际跨界河流防汛抗旱、洪水管理和预报需要,提出了红河州国际跨界河流水情自动测报系统的设计构想。
- The four great Siberian rivers are the Ob (3300 miles), the Yenisey (2550 miles, with the Angara as its main tributary), the Lena (2720 miles) and the Amur (Heilongjiang, 2740 miles) which is the boundary river between Russia and China. 西伯利亚地区的主要河流有鄂毕河（3300英里）、叶尼塞河（2550英里,安加拉河为其主要支流）、勒拿河（2720英里）和俄罗斯与中国的界河阿穆尔河（黑龙江，2740英里）。
- management of boundary river navigation 界河航行管理
- management of boundary river fishing 界河捕捞管理
- Everything is quiet on the frontier. 边境上一切安静。
- The car was turned back at the frontier. 汽车在边境处被拦住了。
- Our frontier guards held up under fierce enemy attack. 我们的边防战士在敌人猛烈进攻下巍然不动。
- The river is the boundary between the two countries. 这条河是两国的分界线。
- The river had worn a ravine between the hills. 那条河在两山之间已造成一个深谷。
- The lane is the boundary of our land. 那条小路就是我们这片地的界线。
- Can we dredge the river to make it deeper? 我们能不能把这条河疏浚得深一点？
- The frontier ranges from the northern hills to the southern coast. 边界从北部山地一直延伸到南部海岸。
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
