名词
中文翻译：大黑点
同义词：
['major flaw', 'significant defect']
例句：
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1.The team's performance was marred by a few major dark spots.
团队的表现被一些重大的缺陷所玷污。
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2.The painting had several significant dark spots that needed to be repaired.
这幅画有几个显著的瑕疵需要修复。
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3. The company's financial report revealed several major dark spots that could affect its future growth.
公司的财务报告揭示了几个重大问题，可能会影响其未来的增长。