The idiom '纳新吐故' (nà xīn tǔ gù), akin to '吐故纳新' (tǔ gù nà xīn), refers to the process of metabolism or renewal, absorbing the new and expelling the old. It is often used as a predicate or object to signify this natural process.
成语“纳新吐故”指新陈代谢，吸收新的吐出旧的，常作谓语或宾语，指新陈代谢。
| 成语 | 纳新吐故 |
|---|---|
| 解释 | 吸入新鲜的吐出陈旧的 |
| 出处 | 元·辛文房《唐才子传·吕岩》：“熊经鸟伸，纳新吐故，无七情以夺魂魄。” |
| 拼音 | nà xīn tǔ gù |
| 拼音码 | nxtg |
| 近义词 | 吐故纳新 |
| 用法 | 联合式；作谓语、宾语；指新陈代谢 |
Tags: freq3
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