He ruminated on the terrible wastage of consumerism.他反复考虑了消费主义带来的严重浪费问题。

He would ruminate excessively about death.关于死亡问题他往往思考过多。

The electorate ruminated over its choice of government.选民反复考虑了选择政体的问题。

The oxen were both ruminating.那两头牛都在倒嚼。