常見例句雙語例句Some jewelry experts remain doubtful about diamond investing.一些珠寶專家對鑽石投資仍表示懷疑。blog.sina.com.cnEven the sceptical Czechs seem less doubtful about the merits of membership of the currency club.即使是慣於懷疑的捷尅人似乎也減少了對這一貨幣俱樂部成員身份優(yōu)越性的懷疑。Health professionals should report ADRs even if they are doubtful about the precise relationship between the given medicine and reaction.即使衛(wèi)生專業(yè)人員對所給葯物和産生反應之間的確切關聯存有不確定性，也應做出葯品不良反應的報告。權威例句Canadian officials had at first been sceptical about Gouzenko and were doubtful about offering him asylum.ECONOMIST: Svetlana GouzenkoAt least the term has caught on, even if people are doubtful about what it signifies.ECONOMIST: The Big SocietyAlthough Albertsons had an estimated 2.4% net margin last year, Wall Street is doubtful about its prospects.FORBES: The Guru in the Vegetable Bin 返回 doubtful about