【上位】 the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart" 心臓の1拍ごとの動脈のリズミカルな収縮・膨張。
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the act of pounding (delivering repeated heavy blows); "the sudden hammer of fists caught him off guard"; "the pounding of feet on the hallway" たたきつぶす(繰り返し強打する)行為。
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