Jian Shu was a historical celebrity, but less was recorded in documents and many questions about him remained vague and unclear.

蹇叔是一位历史名人，但文献记载不详，许多问题含糊不清。

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But they acknowledged that the concept remained vague, and that their most ambitious time frame was to find a funding source within two years.

但他们承认相关的筹划还很模糊，目前他们最有建设性的时间框架是在两年内找到一个资金来源。

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No doubt aware of the publicity she could cultivate, Staub, sitting on Michaels’ lap, remained vague, "We're not saying anything other than we're together doing this song."

毫无疑问，意识到她可以培养知名度，斯桃波坐在迈克尔斯的膝盖上，继续暧昧。 “除了一起唱这首歌之外，我们并没有说什么。”

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While some individual Brothers have urged the banning of alcohol in Egypt, the group's leaders have generally remained vague on such social issues.

WSJ: In Cairo,Drowning Fears in Beer and Tattoo Ink

Official accounts of the extent of the damage in the Solomons remained vague hours after the fact, and a government official said communication with the worst-hit areas remained difficult.

WSJ: Tsunami Destroys Villages in Solomon Islands

No fear, no discomfort, only a vague sadness at the thought of all that remained undone.

NEWYORKER: Tenth of December