The school's hallways were adorned with beautiful streamers and banners.是什么意思？

The school's hallways were adorned with beautiful streamers and banners.

学校的走廊装饰著漂亮的彩带和标语.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

hallways

n. 走廊，过道，门厅( hallway的名词复数 )；

例句
The school's hallways were adorned with beautiful streamers and banners.
学校的走廊装饰著漂亮的彩带和标语.

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

adorned

adj. [计]被修饰的；v. 装饰，佩带( adorn的过去式和过去分词 )；

例句
Foreheads which had been hidden by cloche hats were revealed adorned with small plate shaped hats.
以前前额被吊钟型帽檐所遮蔽,现在也显露出来,用小型平顶帽来增加魅力.

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

beautiful

adj. 美丽的，美好的，迷人的，出色的；

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

streamers

--

例句
Sweet sweet lake goes vacationing village and streamers , send festal atmosphere.
香蜜湖度假村里张灯结彩, 一派节日气氛.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

banners

n. 横幅( banner的名词复数 )，旗，旗帜，虹采；

例句
...a large crowd of students carrying banners denouncing the government...
一大群高举谴责政府的条幅的学生