1. During the prenatal examination, the doctor performed a ballottement to check the position of the fetus.
在产前检查中，医生进行了一次摇动检查，以检查胎儿的位置。
2. Ballottement is a technique commonly used by obstetricians to assess the movement and position of the baby inside the uterus.
摇动检查是产科医生常用的一种技术，用于评估子宫内胎儿的运动和位置。
