Labor and Delivery专业的解释是......

Labor: the series of events by which uterine contractions and abdominal pressure expel the fetus and placenta from the woman's body. 从宫缩开始，到胎儿的出生和胎盘的脱落排出，这一系列的events统称为“labor”

 

Delivery: 应该特指“生产”，比如预产期的一个说法叫EDD: estimated date of delivery. 生产的方式：type of delivery, 是natural vaginal birth or C-section?