未成熟的苹果是酸的。
有些人认为iPhone的上升势头与当年的iPod无异但其实这是一种误导。因为当苹果进入便携式MP 3播放器市场时，这个市场还是一片混乱、远未成熟。
Some people liken its ascent to that of the iPod, but that's misleading because the market for portable MP3 players was chaotic and immature when Apple entered it.
介绍了苹果多酚的组成成份，从未成熟苹果中制取苹果多酚的工艺。
This paper introduces the ingredients of apple polyphenols and the extraction process from unripe apples.
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