基本解釋裂點，節(jié)點詞組短語短語gully and knick point 沖溝裂點knick point更多詞組英英字典柯林斯英英字典 a break in the slope of a river profile caused by renewed erosion by a rejuvenated river knick point劍橋字典knick point柯林斯字典專業(yè)釋義地球科學裂點泥克點尼克點節(jié)點環(huán)境科學技術節(jié)點