Flight of stairs
阶梯步级
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
stairs
[[stɛəz]]
n. 楼梯
🗣️ 情景例句
That child behaves just as he pleases.
那孩子想干什么就干什么。
We're having a little get-together Friday night.
周五晚上我们有个小派对。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。