在这种情况下开发商未依照商品房销售广告和宣传资料的承诺履行的，应当向购房人承担违约责任。

In this case, the developer did not in accordance with the promise of commercial housing sales advertising and promotional materials to fulfill, it should be liable for breach of contract.

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声称不可抗力的一方有举证责任，证明不可抗力与未履行本合同规定的该方义务有直接关系。

A party claiming force majeure has the burden to prove the direct relationship between the force majeure and the non-performance of its obligations under this Agreement.

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本信件并不解除你方缺陷责任之义务以及合同项下其它未履行的义务。

This letter does not relieve you of your obligations for defect liability and other outstanding obligations under the Contract.

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