什么是 barren?Not producing offspring.Incapable of producing offspring.Lacking vegetation, especially useful vegetation.Unproductive of results or gains; unprofitable: barren efforts. See Synonyms at futile.Devoid of something specified: writing barren of insight. See Synonyms at empty.Lacking in liveliness or interest.A tract of unproductive land, often with a scrubby growth of trees. Often used in the plural.