1.Most riverine accidents had nothing to do with them.

河边发生的大部与它们无关。

2.The embankments along the river were built to protect regions from riverine flooding.

沿河的堤防是为了保地区免受河流洪水的侵袭。

3.Now 350 square kilometers of this riverine environment are coated with more than 350,000 liters of thick fuel oil.

现在这片350平方公里的河域被35万多升厚厚的燃油覆盖。