I traced the course of the river on the map spread out on my briefcase.

我在自己公文包上铺展开的地图中勾画出了这条河的流向。

《柯林斯英汉双解大词典》

The path follows the course of the river.

小路沿河道延伸。

《牛津词典》

On the map we chart the course of the river.

我们在地图上标出了该河的流向。

youdao

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

It takes a huge effort, backed by a lot of money, to change the course of the mighty river that is the federal government.

FORBES: There's Much Too Little Money In Politics