guaranine

常见例句

• One of the main ingredients in guarana extract is a form of caffeine called guaranine.
  瓜 拉那提取物的其一主要成份是一种叫瓜拉那因子的咖啡因。
• Unlike caffeine, guaranine is slow to release and doesn’t give the initial quick burst of energy and then the quick let-down.
  与咖啡因不同，瓜拉那因子会慢慢释放能量，而不是一下子强劲爆发后瞬间即逝。
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