Coastal geologic environment of China is characterized by strong tectonic activities, huge silt discharge into sea, frequent surges, and prominent artificial environmental features.

我国海岸带地质环境，具有构造活动性强、入海泥沙大、多风暴潮、人工环境非常突出等特征。

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Man made reservoirs and sand excavation in some rivers reduce silt discharge into sea, these human activities are vital factors that cause coast erosion hazard in Qinhuangdao region recently.

在本区入海的一些河流上兴修的水库与挖沙采石，减少了入海泥沙量，这些人为因素是现今秦皇岛海岸侵蚀灾害的主要原因。

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Discharge of raw sewage into the sea is unsanitary and unsafe.

向大海里倾倒污水既不卫生也不安全。

《柯林斯英汉双解大词典》

The Environment Agency said that during periods of high tide, high river levels would be unable to discharge into the sea, which was likely to lead to localised flooding at Surfleet reservoir.

BBC: Cars stuck in floodwater

Thousands more pipes could discharge raw sewage into the sea, rivers and lakes than was previously thought, the Marine Conservation Society has said.

BBC: Charity warning over raw sewage discharge levels

Most cities in the developing world discharge their sewage untreated into rivers or the sea.

ECONOMIST: Bursting cities, bust infrastructure