Slam-shot volleyball most positive effective weapon attack, bat, spike technological key of link in the sky.
摘要：扣球是排球进攻中最积极有效的武器，而空中击球是扣球技术环节的关键。
His levels of a heart protein, troponin, were sky-high. It looked as if he was having a heart attack.
他的心肌蛋白——肌钙蛋白水平极高，说明他心脏病发作了。
His levels of a heart protein, troponin, were sky-high. It looked as if he was having a heart attack.
他的心肌蛋白——肌钙蛋白水平极高，说明他心脏病发作了。
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