doubtful about

基本解釋

Some jewelry experts remain doubtful about diamond investing.
一些珠寶專家對鉆石投資仍表示懷疑。
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Even the sceptical Czechs seem less doubtful about the merits of membership of the currency club.
即使是慣于懷疑的捷克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)人員對所給藥物和產(chǎn)生反應(yīng)之間的確切關(guān)聯(lián)存有不確定性，也應(yīng)做出藥品不良反應(yīng)的報告。

Canadian officials had at first been sceptical about Gouzenko and were doubtful about offering him asylum.
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At least the term has caught on, even if people are doubtful about what it signifies.
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Although Albertsons had an estimated 2.4% net margin last year, Wall Street is doubtful about its prospects.
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