a forward plunge down a flight of stairs.
沿着一段楼梯向前一跳
foot of the stairs
一段楼梯的最下一级
head of the stairs
一段楼梯的最上一级
This sentence can be paraphrased as though very simple and crude, the stairway unexpectedly had a handrail that seemed not well matched with the crudeness of it.
（一段楼梯已经磨损，溜滑的木质楼梯直通楼上，楼梯居然还装有扶手。）
Owens accidentally fell down a flight of stairs.
欧文斯意外地在一段楼梯上摔倒。
She has opened the floor door, with the finger one section of stairs .
她打开了地板门，用手指着一段楼梯。
A series of stairs rising from one landing to another.
一段楼梯从楼梯的一个休息平台到下一个休息平台之间的连续台阶
" One flight up Della ran, and paused One flight up Della ran, and paused for a moment, panting. She opened the door.
德拉一口气跑上一段楼梯,停了一会儿,喘着气,然后打开了门。
Climbing up the long stairs to his office quite puffed me out.
我爬了很长一段楼梯到了他的办公室，累得我气喘吁吁。
a stairway (often on the outside of a building) that permits emergency exit in the case of fire.
一段楼梯（经常在建筑物的外边）用于保证在火灾中的紧急逃亡。
climb a long/short flight of stairs
上一大[小]段楼梯
A step in a straight stairway.
（平行）梯级一段直楼梯中的一级
We also talk of individual steps which make up a staircase or a flight of steps steps
还可用以指构成楼梯或一段台阶的梯级
There was no lift and we had to climb six flights of stairs.
没有电梯, 我们得爬六段楼梯.
Single-flight staircase. Handrails and stair break can be shown or hidden.
单段楼梯。可显示或隐藏扶手和楼梯坡折。
I fell right to the bottom of the stairs.
我从楼梯上一直摔到楼梯下面.
No longer any need of climbing several flights of steps to a small coop shared with another.
她用不着再爬几段楼梯去和另一个演员合用一小间了。
When he came to the second flight, he saw a heap of dead fingers lying. He asked, "Where does the godfather live?"
他上到第二段楼梯，看到一堆死手指。他问它们：「教父住在哪儿？」