她指出前十年辐照牛肉在全国很多杂货店都有出售，但这并没有持续多长时间。
She pointed out that irradiated beef was offered at many grocery stores nationwide at the beginning of the decade but it did not last long.
库存的影响虽然是短时的，但同样没有人知道它的影响有多大，会持续多长时间。
The inventory effect should be temporary, but, again, nobody knows how big or lasting it will be.
库存的影响虽然是短时的，但同样没有人知道它的影响有多大，会持续多长时间。
The inventory effect should be temporary, but, again, nobody knows how big or lasting it will be.
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