樓梯的英文單詞

[stZE]

n.

樓梯

While climbing up the stairs the old man always loses his breath.

那老人上樓時總是氣喘籲籲的。

(樓梯的)壹級

He slipped on the stairs and put his ankle out.

他在樓梯上滑了壹跤, 踝關節脫臼了。