警方封锁了这个地区直到炸弹被安全拆除为止。

Police cordoned off the area until the bomb was made safe.

《牛津词典》

非洲的大部分地区直接进入了铁器时代，采用了基本的技术并与当地的条件和资源相适应。

Much of Africa moved right into the Iron Age, taking the basic technology and adapting it to local conditions and resources.

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静态的中心区直径22米，将包括接待区。

A static central hub, which is 22m (72ft) across, will contain the reception area.

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