Portico Colonnaded porch or entrance to a structure, or covered walkway supported by regularly spaced columns.是什么意思？

Portico Colonnaded porch or entrance to a structure, or covered walkway supported by regularly spaced columns.

建筑物有柱的走廊或入口, 或有一定间隔的柱子支承的带顶信道.

portico

n. 柱廊，（有圆柱的）门廊；

例句
Its alcoves, its projecting walls and its portico had the same measurements as the others.
33卫房和柱子,并廊子都照先前的尺寸.

colonnaded

adj. 有列柱的，有柱廊的；

例句
Here, the colonnaded streets, arches and theaters are in exceptional condition.
在这里, 廊柱的街道, 拱门、剧院都非平常.

porch

n. 门廊，游廊，走廊；

例句
She huddled inside the porch as she rang the bell...
她按门铃时身子在门廊里缩成一团。

or

conj. 或，或者，还是，不然，否则，左右；prep. <古、诗>在…之前，比…更早；n. [纹章]黑金色、黑色；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

entrance

n. 入口，进口，进入，进入方法，进入方式，入场权；vt. 使出神，使入迷，使喜悦，使狂喜；

例句
One edge of the garden abutted on an old entrance to the mine...
花园的一侧紧靠着矿井的旧入口。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

structure

n. 结构，构造，建筑物，体系；vt. 构成，排列，安排；

例句
Engineers found the structure had been corroded by moisture...
工程师们发现该建筑已经受潮腐蚀。

covered

adj. 大量的，有遮盖物的，（尤指）有顶的；v. 覆盖( cover的过去式和过去分词)，掩护，包括；

例句
I covered the scroll in sealing wax, and affixed a red ribbon.
我用封蜡将卷轴封好，并系上一根红丝带。

walkway

n. 走道，人行道；

例句
Portico Colonnaded porch or entrance to a structure, or covered walkway supported by regularly spaced columns.
建筑物有柱的走廊或入口, 或有一定间隔的柱子支承的带顶信道.

supported

v. 支持( support的过去式和过去分词 )，帮助，支撑，维持；

例句
Leaders in America have generally supported military action...
美国领导人普遍支持采取军事行动。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

regularly

adv. 有规律地，按时，照例，按部就班地，整齐地，有条不紊地，经常，不断地，定期地；

例句
Their sleep is regularly disturbed by the sound of gunfire as criminal gangs settle their nightly accounts.
他们经常被黑帮每晚火拼的枪声所吵醒。

spaced

vt. 把…分隔开，留间隔于…之间（space的过去式与过去分词形式）；

例句
Try to get into the habit of eating at least three small meals a day, at equally spaced intervals.
尽量养成每天至少吃3顿小餐的习惯，而且每餐的间隔要相同。

columns

n. 柱( column的名词复数 )，纵队，栏，（舰队的）纵列；

例句
There were reports of columns of military vehicles appearing on the streets.
有报道说几队军用车辆出现在街头。