However, Catford's theory has some deficiencies. The shift model he proposes only takes effect on and below the level of sentence, and does not take textual and pragmatic factors into account.

但卡特·福德的翻译转换理论也存在缺陷，即他提出的转换模式只是在句子层级及以下发生，未考虑到超出句子的段落、语篇层次。

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The shift to agency model will have a negative impact on working capital as well, but Expedia feels that it has a strong balance sheet to support the same.

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So shift the model.

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The shift to a subscription model is going to make reported revenues messy for some time to come.

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