织巢鸟筑了一个篮子一样的巢，巢的形状像一个梨，中间有一个洞。

The weaver bird builds a nest that looks like a basket, the nest shaped like a pear with a hole in the middle.

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最初它们是圆圆的金属片，中间有一个洞，这样一根绳子就可以把它们串在一起。

Originally they were round pieces of metal with a hole in the center, so that a piece of string could keep them together.

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然而，有一个洞，在这个模型。

However, there is one hole in this model.

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