Complex sentence: FcR, complement receptors (CR) and mannose receptor (lectin) are phagocytic receptors, which means that they can induce phagocytosis if they are expressed in non-phagocytic cells such as fibroblasts.
Split into simpler sentences: FcR, complement receptors (CR) and mannose receptor (lectin) are phagocytic receptors. They can induce phagocytosis if they are expressed in non-phagocytic cells such as fibroblasts.