be doubtful about中文,be doubtful about的意思,be doubtful about翻译及用法 2026-11-08 18:22 浏览次数 37 be doubtful about英[bi: ˈdautful əˈbaut]美[bi ˈdaʊtfəl əˈbaʊt]对…感到怀疑