n.(建筑物内的)楼梯
staircase的复数

原形：staircase复数：staircases

We walked down the staircase.
我们走下了楼梯。
Mary climbed the staircase cautiously, holding fast to the rail
玛丽紧紧地抓着栏杆，小心翼翼地爬楼梯。
He climbed the staircase to the second floor, where his bedroom was located.
他爬上楼梯到二楼，他的卧室就在那里。
The staircase in the old mansion creaked with every step.
那座古老豪宅的楼梯每走一步都会吱吱作响。
She descended the staircase gracefully, wearing an elegant evening gown.
她穿着优雅的晚礼服，优雅地走下楼梯。
The staircase led directly to the basement.
楼梯直接通向地下室。
The child held onto the banister as he ascended the staircase.
孩子扶着栏杆上楼。
A painting hung on the wall halfway up the staircase.
一幅画挂在楼梯中间的墙上。
The staircase was illuminated by a series of soft, warm lights.
楼梯被一系列柔和的暖光照明。
She tripped on the last step of the staircase and fell.
她在楼梯的最后一级绊倒了并摔倒了。
The staircase wound its way around the central pillar.
楼梯盘旋在中央柱子周围。
After a long day, he was too exhausted to climb the staircase to his apartment.
经过漫长的一天，他太累了，无法爬到他的公寓楼梯。