On top of that, the area has not burned for more than 20 years, during which time fuel built up.

更重要的是，这个区域已经20多年没有燃烧过了，肯定积攒了很多的可燃物。

youdao

But going beyond the ring-road to the suburbs, the total built-up area has a population of 10m.

但是在环城公路以外的城郊，整个结合区有人口1000万。

youdao

It also concludes the problems existing in the expansion of built-up area and gives some reasonable Suggestions.

并针对建成区扩展中存在的问题，提出了合理化建议。

youdao

Within the R160 controlled area, for example, they must fly above the River Thames, which minimises the risk of crashing into a built-up area.

BBC: London helicopter crash: What are the rules for pilots?

Cleveland actually lost people, with a population decline of 8%, while expanding its built-up area by 33%.

ECONOMIST: They can yet be resurrected | The

Wildlife experts have said the sighting of the normally-shy deer so close to a built-up area is "extremely rare".

BBC: 'Shy' deer with sheep near homes in Lancashire