After the passage is over, Milton addresses Alpheus, a river god -the god who was noted for plunging the course of his river underground in order to chase the nymph Arethuse who had been turned into a fountain.

这段结束后，弥尔顿引用了河神阿尔甫斯,那位因私底下掀起河流的波浪而闻名的神,以此来与被变成海底之泉的女神阿托瑞萨相互融合。

耶鲁公开课 - 弥尔顿课程节选

It follows the course of the river, then banks sharply and climbs to circle above.

NPR: Ronan Bennett: From Prisoner to Writer

The remains of the abutment that supported the Roman bridge stand a hundred yards from the present course of the river.

BBC: Walking Hadrian��s Wall

The torrent headed south, following the course of the Indus river, wrecking lives and infrastructure in the heart of Pakistan, Punjab province, and, by-mid week, in Sindh.

ECONOMIST: Blighted Pakistan