built-up 是什么意思

	adj. 1.组合的，拼成的，合成的。 2.围建的，建筑物多的。短语和例子 built-up gear 组合齿轮。 This shoe has a built-up heel. 这种鞋子的后跟是拼装式的。 a built-up city 按计划建设成的城市。

peopled with settlers; "the built-up areas"

	1.	This shoe has a built-up heel . 这种鞋子的后跟是拼装式的。
	2.	Several adjacent buildings are merged and shown as a continuous built-up area . 几个相邻的建筑物合并表示成一个完整的建筑区。

built-up是什么意思