Experts say technical issues are probably the real reason for the delay.

专家说，拖延交货的真正原因可能出于技术性问题。

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There was a delay because we had some technical problems.

延期是由于技术上的问题造成的。

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There was a delay because we had some technical problems.

延期是由于技术上的问题造成的。

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