The initial formation of the polarized state involves signaling cascades that epithelial cells use to orient themselves to sites of cell-cell and cell-matrix contact.是什么意思_The initial formation of the polarized state involves signaling cascades that epithelial cells use to orient themselves to sites of cell-cell and cell-matrix contact.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句