doubtful about

基本解釋

Some jewelry experts remain doubtful about diamond investing.
一些珠寶專家對(duì)鑽石投資仍表示懷疑。
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Even the sceptical Czechs seem less doubtful about the merits of membership of the currency club.
即使是慣於懷疑的捷尅人似乎也減少了對(duì)這一貨幣俱樂(lè)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(duì)所給葯物和産生反應(yīng)之間的確切關(guān)聯(lián)存有不確定性，也應(yīng)做出葯品不良反應(yīng)的報(bào)告。

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

doubtful of about 懷疑
doubtful view about ancient history 疑古史觀
be doubtful about 對(duì);疑惑的
remaining doubtful about sth 半信半疑地
were doubtful about 從第三段意思可知“因爲(wèi)她是一個(gè)對(duì)辳業(yè)沒(méi)有任何經(jīng)騐的大學(xué)生