Regulators in recent weeks permitted trading of products tied to selected individual stocks, including margin trading and short selling.
近几个星期，同某些个股挂钩的产品获得监管层放行，包括保证金交易和做空交易。
They insist they will go ahead with plans to introduce margin trading, short selling, and futures contracts on share prices.
他们坚决主张按原定计划引入保证金交易，卖空交易，以及股指期货。
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