名词
中文翻译：Unknown
同义词：
['speculation', 'speculation', 'speculation']
例句：
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2.
金融
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1. The stock market is a place where investors can engage in arbitrage activities.
股市是投资者进行套利活动的地方。
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2. He speculated on the price of gold and made a profit.
他预测黄金价格并从中获利。
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3. The company engaged in speculation in the stock market and lost a lot of money.
该公司在股市中进行投机，损失了很多钱。