fif·ty-fif·ty /ˌfɪftiˈfɪfti/
(a.)(ad.)各半的,對半的,利弊各半的
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]