名词
中文翻译：白象
同义词：
['white elephant', 'useless', "burden例句：1. The company's decision to invest in a new technologywas a white elephant.（公司决定投资新技术，这简直是个无底洞。）"]
例句：
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1. The company's decision to invest in a new technologywas a white elephant.
公司决定投资新技术，这简直是个无底洞。
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2. Theproject was a white elephant, and theteam had to rethink their approach.
这个项目是个无底洞，团队不得不重新考虑他们的策略。
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3. The white elephant of themeeting was the lack of clear direction.
会议的无底洞是缺乏明确的方向。