常见例句双语例句There were connecting vessels between the villi arteriole and the villi venule at the tip of the villi, and they form a precapillary arteriovenous anastomosis.绒毛微动脉在顶部与绒毛微静脉有交通支，形成毛细血管前动静脉吻合。 返回 precapillary arteriole