So far, other scientists have generally been willing to share their knowledge, but Downs is troubled by the prospect of companies' putting exorbitant user fees on their databases.

到目前为止，其他的科学家一般都愿意分享他们的知识，但公司希望能够向数据库的使用者收取很高的费用，Downs为此感到不安。

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The prospect of earning small fees marketing a reality-based product that is difficult to sell to investors is far less attractive.

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The prospect of increased scrutiny on fees is prompting employers to change their investment lineups to offer more low-fee funds.

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Fears of renewed recession in the rich world and anxiety about the euro zone have dampened stockmarkets and made the lucrative fees from underwriting share and debt issues, or advising on big mergers, seem a distant prospect.

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