1. Meaning: it means to think on the basis of observation, and to reasonably explain the reasons for the change of things, the connection between things, or the law of the development of things.
2. Antonyms: question, doubt, cover up, conceal.
3. Source: Houhan Shu - Chen Yuan biography: the accumulation of knots of the first saint.
4, sentence: the reason why there is an explanation is because: the greatest sorrow of man is always not worried about finding a reason for their excuses.
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