To feel guilty or apprehensive because one knows one is in the wrong or lacks a solid argument.
做了错事的人，总会有些理亏心虚，不敢与人对视。
Those who have done wrong deeds always feel a bit guilty and apprehensive, not daring to make eye contact with others.
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To feel guilty or apprehensive because one knows one is in the wrong or lacks a solid argument.