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艾尔:
People do not sacrifice will not be harvested. 
人不牺牲就不会得到收获。
玛丽:
Yes,you are right.To get harvest, one should pay the same price.
你说得对。要得到收获，就要付出收获同等的代价。
艾尔:
This is the basic principles of alchemy - equivalent to the exchange.
这就是炼金术的基本原则—等价交换。
玛丽:
I can't agree with you any more.
我非常同意你的说法。