炒股者赚取股票买卖的价格差。

Market makers earn their livings from the spread between buying and selling prices.

《柯林斯英汉双解大词典》

我目前在一家大型国际公司工作，负责8人经纪团队；我们为全球的主要客户买卖股票。

I'm currently working in a large international company in charge of team of 8 brokers; we buy and sell stocks for major clients worldwide.

youdao

我们为全球大户买卖股票。

We buy and sell stocks for major clients worldwide.

youdao

Those are institutions that arrange for or manage the buying and selling of financial assets, such as the New York Stock Exchange.

经纪机构是指那些安排或,管理买卖的,金融资产的机构,比如说纽约股票交易所

耶鲁公开课 - 金融市场课程节选

And with this data, where students were able ; to implement last year their own E-trade-like website; whereby you have accounts and you log in your hand age of your users 10,000 virtual dollars and with them can they get stock quotes, by stocks, sell stocks and the like, all of this accomplished just after a few weeks time.

通过这些数据,学生们就可以做出类似电子商务的网站;,只要你有账号就能进入你的账户,里面有1万的虚拟美元,这样你就能去查询股票报价,进行买卖股票之类的事,这一切仅仅用了几个星期的时间就完成。

哈佛公开课 - 计算机科学课程节选