代谢

运动可以促进体内细胞的新陈代谢。

yùn dòng kě yǐ cù jìn tǐ nèi xì bāo de xīn chén dài xiè.

Exercise can promote the metabolism of cells in the body.

面对复杂多变的外部环境，我们做事必须做到新陈代谢。

miàn duì fù zá duō biàn de wài bù huán jìng, wǒ men zuò shì bì xū zuò dào xīn chén dài xiè.

Faced with a complex and changing external environment, we must work in a cycle of new and old changes.