The steps were slimy with moss.是什么意思？

The steps were slimy with moss.

台阶因长满苔藓而发黏.

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。

steps

n. 级别( step的名词复数 )，脚步，步骤，步伐；v. 举步，行走，跨步( step的第三人称单数 )，离开(along)，（尤指马）轻快地走，（跳舞时）合着节拍走；

例句
Companies need to take active steps to increase exports.
各公司需要采取积极措施增加出口。

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。

slimy

adj. 似黏液的，黏滑的，<贬>谄媚的，虚伪的；

例句
The steps were slimy with moss.
台阶因长满苔藓而发黏.

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。

moss

n. 苔藓，藓沼，莫斯（男子名），泥炭

例句
Spore characters of 23 acrocarpous moss taxa in China are reported.
报道了中国23种顶蒴藓类孢子的形态特征.