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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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

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