名词
中文翻译：检查基准标记
同义词：
['checkmark', 'verification mark', 'verification point']
例句：
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1. The engineer used a checkmark to mark the spot where the pipe was supposed to be installed.
工程师用一个检查标记来标记管道应该安装的位置。
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2.The teacher marked the test paper with a checkmark to indicate the correct answers.
老师用一个检查标记在试卷上标记正确的答案。
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3.The scientist checked the data with a checkmark to ensure its accuracy.
科学家用一个检查标记来核对数据的准确性。