BBS (Bulletin Board System) has become a new kind of media, through which we can share information and exchange emotions.

BBS（电子公告栏）已经成为一种新型的媒体，通过它，我们可以共享信息，交流情感。

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At 8 years old, he worked as a kitchen boy for a restaurant in Paris in exchange for room and board.

8岁时，他在巴黎的一家餐馆当厨工，以换取食宿。

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Fund, which will be managed by the stock exchange administrative board.

风险基金由证券交易所理事会管理。

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The options have been traded for several decades, starting with the Chicago Board Options Exchange.

期权最初从芝加哥期权交易所进行交易,到现在已经交易了几十年

耶鲁公开课 - 金融市场课程节选

In fairness, Nasdaq did try to bring order to the freewheeling Bulletin Board--and has taken a pratfall, recently scrapping the plan for the so-called Bulletin Board exchange.

FORBES: Magazine Article

Lime will allow trading with the eight options exchanges which include BATS Options, Boston Options Exchange, Chicago Board Options Exchange, International Securities Exchange, Nasdaq OMX Options, Nasdaq OMX PHLX, NYSE Amex Options and NYSE Arca Options.

FORBES: Lime Launches Options Trading

Index options, traded at the Chicago Mercantile Exchange and the Chicago Board Options Exchange, work like options on individual stocks.

FORBES: When the Markets Sleep