You must drop your speed in built-up areas.

在房屋密集区必须放慢速度。

《牛津词典》

A speed limit of 30 mph was introduced in built-up areas.

在建筑物密集区域，限速为每小时30英里。

《柯林斯英汉双解大词典》

China will further expand the scope of its opened-up areas.

中国要进一步扩大开放范围。

《新英汉大辞典》

She grew up in a public housing project in the South Bronx, one of the poorest areas of the city.

VOA: special.2009.05.30

That water is separated, that bubble has opened up so we've got the sky created And we've got the waters collected in certain areas down here, And we've got sky.

水流被分开，形成了水泡,我们便有了天空,在那里某些地方也有一些水流汇集，我们便有了天空。

耶鲁公开课 - 旧约导论课程节选

OCW Self learners are coming to OCW to explore whole new areas of study as well as to brush up on subjects that they took a while ago and perhaps got the rest in the end.

自学者浏览,搜索全新领域的研究,补充学过的科目的知识,使之完整。

麻省理工公开课 - 媒体、教育、市场课程节选

But the violence spread through several built-up areas in and around the town.

FORBES: Myanmar's Ethnic Conflict Flares In Shadow Of Asian Oil Investments

In Northern Ireland there should be two top-up areas each returning two members.

BBC: The Jenkins Report: What it says

Helicopter pilots in central London are instructed to follow the Thames, to avoid flying over built-up areas as far as possible.

CNN: London helicopter crash prompts safety questions