形容词
中文翻译：Unknown
同义词：
['speculative', 'speculatively', 'speculatively-']
例句：
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1. The stock market is a speculative venture that can be risky.
股市是一个投机性的商业，可能会带来风险。
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2. The investor was speculative in his investment strategy.
投资者在投资策略上表现出了投机性。
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3. The company's decision to invest in new technology was speculative and risky.
公司决定投资新技术是投机性的，并且有风险。