optimistic[英][??pt??m?st?k][美][?ɑ:pt??m?st?k]adj.樂觀的，樂觀主義的;雙語例句 1The cricket team and its blindly optimistic supporters板球隊及其盲目樂觀的支持者 2And while investors seem optimistic, it 's far from clear if moviegoers will buy into its new approach.盡管投資者對它的前景十分樂觀，但是電影觀眾對新舉措是否買賬仍不明朗。