An HFT might, for instance, lock in a high price by submitting a large sell order to a dark pool just as the exchange price of a share begins to fall.

例如，股票的交易所价格开始下跌时，一个高频交易者可能提交一个大卖单给资金暗池从而锁定当时的高价。

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But we can't tell you who is allowed to use your swimming pool, pay your taxi fares for you — or do anything about the exchange rate.

但我们没办法告诉你谁可以用你家的游泳池，给你掏打车钱，或者算汇率。

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This type of exchange between blood centers is a common practice and provides a national pool of blood when necessary.

不同血液中心之间的这种交换是一种惯常的做法，在必要时提供了一个全国性的血库。

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There, according to the Chinese Foreign Ministry, the leaders discussed the currency swap and foreign-exchange reserve pool ideas with their Russian, Indian and Brazilian peers.

FORBES: China's Central Bank Willing To Share $3 Trillion

Regardless of the amount of difficulty involved, the big four emerging markets plus South Africa said earlier this week they were considering setting up a foreign-exchange reserve pool and a currency-swap arrangement in an effort to avoid any credit crisis stemming from the advanced economies.

FORBES: China's Central Bank Willing To Share $3 Trillion

With this, SGX will be Asia's first exchange-backed dark pool, which will complement exchange trading by reducing the market impact of large trades.

FORBES: Intelligent Investing