动词短语
中文翻译：彻底地知道
同义词：
['understand thoroughly', 'know thoroughly']
例句：
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1.I know through and through that he is lying.
我彻底知道他在撒谎。
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2. She knows through and through what she needs to do.
她完全清楚自己需要做什么。
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3. The teacher knew through and through that the student was not ready for the test.
老师完全知道学生还没准备好考试。