英语语法分析

Results Clusters of malignant trophoblast appeared to be arising from residual normal chorionic villi with projection into the intervillous space in the infarct area of placenta.

结果在胎盘梗死区域中，成簇的恶性滋养细胞直接起自残存绒毛，并延伸到绒毛间隙之中。