| 释义 |
DEFINITIVE EXAMPLES 权威例句〔crown〕To reach a stage in labor when a large segment of the fetal scalp is visible at the vaginal orifice. Used of a fetus or the head of a fetus.露顶：分娩中包括胎儿头盖的大部分出现在阴道口的阶段。用于指胎儿或胎儿的头部美国传统〔labia majora〕The two outer rounded folds of adipose tissue that lie on either side of the vaginal opening and form the external lateral boundaries of the vulva.大阴唇：在阴道口两侧的两片外面的圆形脂肪组织褶皱，构成了外阴外侧边界美国传统 |