1·The bays and the river mouths where the tide is high (the tidal range is more than 10 metres) are usually perfect sites to build tidal power stations.
潮汐高（潮差超过10米）的海湾和河口通常是建造潮汐发电站的理想位置。
2·The reviews of modern half graben lakes show that coarse depositional facies do not developed everywhere along the lake margin, but only at the main river mouths.
现代断陷湖盆沉积考察表明，并非湖盆边缘处处发育粗粒沉积相，粗粒沉积体系仪仅发育在主河口附近。
3·The planning involves improvements to fish landing centers, drying platforms and auction centers, as well as the dredging of river mouths to remove the silt deposited by the waves.
有关计划包括改善水产登陆中心、晾晒场地和拍卖中心，以及疏浚河口以清除海浪冲来的淤泥。
4·As the first line of defence, communities built sea walls with tsunami gates for river mouths that could be closed when waves approached, as well as offshore breakwaters and raised river dykes.
作为第一道防线，居民们修建了海堤，并在河口处设立水闸(当海啸靠近时，可以关闭水闸)；另外还修建了离岸堤，并加高了河堤。
5·The river's mouth is the place where a river goes into the ocean. Most rivers become very wide at their mouths, forming deltas from soil deposited there.
河流的出口是河流进入海洋的地方。大多数的河流在出口处变得非常宽阔，土壤在那儿沉积，形成三角洲。
6·When factories pump poisonous wastes into river, creatures living neat the rivers mouths, such as shellfish, absorb poison into their bodies.
当工厂排放有毒废气物到河流中，生活在河流口的生活，如：贝类吸收有毒物质进它们的体仙。
7·Besides, you will not find coral near the mouths of rivers either Because the river water has too much soil in it or Because it is polluted.
此外，在江河的入海口附近也不会有珊瑚，因为江水要么含有太多的泥土，要么就是被污染了。
8·The main geological environmental problems include slope disasters, siltation of river courses and mouths, contamination of water and soils, tectonic instability and hidden karst collapses.
主要地质环境问题有斜坡灾害、河道、口门淤积，水土污染，构造稳定性和隐伏岩溶塌陷等。