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。

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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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Using punny humor and wry examples, he explained the arcane world of finance, with its foggy phrases such as "selling short" and "buying on margin, " to the newly empowered personal investor.

他用幽默的语言，好笑的例子和诸如“卖空”和“边际购买”之类模糊的术语向刚刚崛起的投资人讲解神秘的金融世界。

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