The alveolar macrophage is derived largely from the bone marrow.肺泡巨噬细胞主要是从骨髓中分化出来的.The alveolar macrophage is particularly rich in the variety of proteolytic enzymes.肺泡巨噬细胞特别富含各种蛋白质水解酶.At any time the macrophage system m...
她用缝纫机缝制了这些裙子。She sewed the dresses on the sewing machine.我得花150美元买这台缝纫机.I have to pay 150 dollars for the sewing machine.这部旧缝纫机大概到了被淘汰的时候了.It's about time this old sewing machine was put out to pasture....