The only marriage that actually appears there is a marriage between two rivers.

而真正出现在那儿的,是两条河流之间的婚姻。

耶鲁公开课 - 弥尔顿课程节选

He's interested in sailing and learns about sailing on lakes, and ponds, and rivers.

他喜欢航海,并在湖泊,池塘,河流里学习航行

耶鲁公开课 - 欧洲文明课程节选

That's what you need for a phalanx, because to maintain the integrity of the hoplite line, you can't have bumps and grooves, and trees and rivers in the way; it will break things up.

而是方阵作战所必备的条件,为了维持重装步兵队列的完整性,就不能在坑坑洼洼,有树林有河流的地方布阵,这会把方阵打散

耶鲁公开课 - 古希腊历史简介课程节选

He first built a navy on rivers using Dutch shipmasters from amsterdam.

他先找荷兰造船师在河流上建了支海军

耶鲁公开课 - 欧洲文明课程节选