Ultrasound screening的用法和樣例：
例句
- Prenatal ultrasound screening is one of the effective means of intervention for birth defects control.
產前超聲篩查是干預胎兒出生缺陷的有效手段之一。 - These represent the fundamental knowledge that anyone who will be or is doing obstetric ultrasound scanning should be expected to know.
這些大綱是任何將要或正在從事產科超聲篩查的醫生所應該了解的。
