A spiral stair
螺旋式楼梯
🧩 词语组成解析
spiral
['spaɪrəl]
n. 螺旋（线）;旋涡;螺旋形物;（足球运动的）旋球;
v. 使成螺旋形;螺旋式的上升（或下降盘旋上升（或下降）;
adj. 螺旋形的;盘旋的;盘旋上升的;
stair
[stɛə]
n. 楼梯;（楼梯的）一级;
🗣️ 情景例句
Where's the campus cafeteria?
校园的食堂在哪儿？
Then,it's usually time to wake up my little brother.
然后，通常是我弄醒我的弟弟的时间。
Since its discovery, it has become a sort of potholers' Everest.
自从被发现以后，这个洞成了洞穴探险者的珠穆朗玛峰，