形成层 Traditional 形成層 xíng chéng céng 🔊 vascular cambium (layer of tissue… + Keep this word Meanings xíng chéng céng 形成層 vascular cambium (layer of tissue responsible for growth inside wood) Its characters 形xíngto appear成chéngto succeedHSK 6层céngto pile on top of one anotherHSK 3