尽管时间有点早，她可能也会用一种称为多普勒的手持型超声波设备来探听婴儿的心跳。

She may listen for your baby’s heartbeat with a handheld ultrasound device called a Doppler although it’s still very early.

youdao

尽管时间有点早，她可能也会用一种称为多普勒的手持型超声波设备来探听婴儿的心跳。

She may listen for your baby’s heartbeat with a handheld ultrasound device called a Doppler, although it’s still very early.

youdao

尽管时间有点早，她可能也会用一种称为多普勒的手持型超声波设备来探听婴儿的心跳。

She may listen for your baby's heartbeat with a handheld ultrasound device called a Doppler, although it's still very early.

youdao