并且这意味着他们的成本更低，并且这会转换(通过竞争魔法)为更低的价格。
And that means their costs are lower, and that translates (through the magic of competition) into lower prices for everyone.
魔法同样是一个转换过程，它把物质或能量转换为其它物质或能量。
Magic is also a conversion process. It converts matter or energy into other matter or energy.
这似乎意味着魔法以某种方式影响了电磁波，进行了重大的能量转换。
It seems to imply that magic affects the electro-magnetic spectrum in some way. Some serious energy is being dealt with.
在哈利·波特与阿兹卡班的囚徒中，赫敏就是使用时间转换器来多上课(最后，由于这个魔法器具他们还救下了小天狼星)。
In Harry Potter and the Prisoner of Azkaban, Hermione USES a time-turner to double up on classes and eventually, the device saves Sirius's neck!
在哈利·波特与阿兹卡班的囚徒中，赫敏就是使用时间转换器来多上课(最后，由于这个魔法器具他们还救下了小天狼星)。
In Harry Potter and the Prisoner of Azkaban, Hermione USES a time-turner to double up on classes and eventually, the device saves Sirius's neck!
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