资料来源 : pyDict

各半的,对半的,利弊各半的

资料来源 : WordNet®

fifty-fifty
     adj : equal in degree or extent or amount; or equally matched or
           balanced; "even amounts of butter and sugar"; "on even
           terms"; "it was a fifty-fifty (or even) split"; "had a
           fifty-fifty (or even) chance"; "an even fight" [syn: {even}]