形容词
中文翻译：自我维持的
同义词：
['self-reliant', 'self-sufficient', 'self-supporting']
例句：
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1. The company's self-sustaining business model has allowed it to survive the economic downturn.
该公司的自我维持商业模式使其能够度过经济衰退。
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2. The team is self-sustaining and can operate independently for months without external support.
该团队是自给自足的，可以在没有外部支持的情况下独立运作数月。
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3. The self-sustaining ecosystem provides a sustainable source of energy for the community.
这个自给自足的生态系统为社区提供了可持续的能量来源。