形容词
中文翻译：不可持续的
同义词：
['unsustainable', "unsustainably例句：1. The company's profits have been unsustainable due to rising costs.（由于成本上升，该公司的利润已经不可持续。）"]
例句：
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1. The company's profits have been unsustainable due to rising costs.
由于成本上升，该公司的利润已经不可持续。
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2. The project is unsustainable without additional funding.
如果没有额外的资金支持，这个项目是不可持续的。
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3.The economy is unsustainable if we continue to rely on fossil fuels.
如果我们继续依赖化石燃料，经济是不可持续的。