名词
中文翻译：Unknown
同义词：
['dealer', 'broker', 'trader']
例句：
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1. The option dealer was able to make a profit from the stock market fluctuations.
期权交易员从股市波动中获利。
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2. The option dealer had to make quick decisions to maximize their profits.
期权交易员必须迅速做出决策以最大化利润。
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3. The option dealer was responsible for monitoring the stock prices and making informed trades.
期权交易员负责监控股票价格并做出明智的交易。