This week's coordinated interest rate cuts by several nations' central Banks appear to have had little or no effect on investors' confidence.

几个国家的中央银行这个星期联手降息，但是似乎对投资者信心产生的作用甚微或者没有作用。

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The investors who practice speculation and have no long-term interest in the securities or assets they trade in.

指进行投机活动的投资者，通常对所交易的证券或资产没有长期的兴趣。

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The company's continued growth, engagement and business potential has attracted growing interest from investors who have put sky-high valuations on a company with little to no revenue that is unprofitable.

WSJ: As Pinterest Grows, Startup Seeks $2.5 Billion Valuation