新陈代谢 xīnchén-dàixiè metabolism (biology)
metabolism (biology); the new replaces the old (idiom)
How to remember 新陈代谢: 新 new + 陈 to display + 代 era + 谢 to thank = metabolism (biology).
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How it is used
- Metabolism (biology) - 促进新陈代谢 (cùjìn xīnchén dàixiè) boost metabolism.
- Also a set idiom meaning 'the new replaces the old', used for any process of renewal in society or organizations.