Once the outer shell was complete, the family made an interior wall from straw bales stacked on dry-stone walling and staked together with hazel sticks.

房子的外壳一经完成，这家人用秸秆捆和榛枝制作干石墙面的内墙。

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Given that they are currently expected to be completed by mid 2005, and the IAEA says the inspections will take three years to complete, it is likely that further stone-walling from North Korea will result in yet more delay.

BBC: Analysis: N Korea's nuclear deal