The water flows into the Niagara River and over the falls on its way to the sea.

问题描述:

The water flows into the Niagara River and over the falls on its way to the sea.
over the falls

水流进尼亚加拉河,流过瀑布,然后进入大海
over the falls,流过瀑布.英文里就是这么用的.