Magnetic resonance imaging,computer tomography and ultrasound already give pretty good images of patients' internal organs,but doctors at the Children's National Medical Center say nothing beats holding a life-size model of a heart in your hand prior

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Magneticresonanceimaging,computertomographyandultrasoundalreadygiveprettygoodimagesofpatients''intern

Magnetic resonance imaging,computer tomography and ultrasound already give pretty good images of patients' internal organs,but doctors at the Children's National Medical Center say nothing beats holding a life-size model of a heart in your hand prior
Magnetic resonance imaging,computer tomography and ultrasound already give pretty good images of patients' internal organs,but doctors at the Children's National Medical Center say nothing beats holding a life-size model of a heart in your hand prior to the surgery.
nothing beats holding a life-size model of a heart in your hand prior to the surgery.
尤其是beat holding 的意思

Magnetic resonance imaging,computer tomography and ultrasound already give pretty good images of patients' internal organs,but doctors at the Children's National Medical Center say nothing beats holding a life-size model of a heart in your hand prior
nothing beats holding a life-size model of a heart in your hand prior to the surgery.
没有什么比在手术前拿着一个真人大小的心脏模型更强的.
意思是说现在的电脑图像模型比不上实实在在的真实模型.beat 胜过,holding 是动名词