Exactly how many octaves you add together is entirely up to you.
具体多少倍频你叠加在一起,这完全取决于你.
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Add together the total cost of the goods.
把商品的总费用加起来.
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Add together these figures.
把这些数字加起来.
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Please add together the integers 5,3 and 2.
请把5、3、2这几个个位数加起来.
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