After all, much of this rehypothecation activity remains rather mysterious.

毕竟，这种再抵押行为大多仍相当隐秘。

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Determining margin, paying and charging interest, rolling over of open positions, liquidating under-margin positions, and supervising rehypothecation of any.

决定保证金数量、支付和收取利息、延展未结头寸、清算低于保证金的头寸、及监督客户帐户中资金的再抵押。

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