ruminal
['ru:men]
[ ruminal ]
n.瘤胃(反刍动物的第一胃)
例句与用法：
As people grow older, they begin to ruminate on the uncertainty of life.
随着年龄的增长，人们开始对生活的变化无常冥思苦想。
The cow began to ruminate after eating up grass.
牛吃完草后开始反刍。
He is ruminating on recent events.
他正在思考最近发生的事。
词形变化：