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1·We walked up a flight of stairs.

我们往上走了一段楼梯。《柯林斯英汉双解大词典》

2·We walked in silence up a flight of stairs and down a long corridor.

我们默默地走上一段楼梯，穿过一道长廊。《柯林斯英汉双解大词典》

3·I fell down a flight of stairs.

我从楼梯上掉下来了。

4·She fell down a flight of stairs.

她从一段楼梯上摔了下来。

5·Owens accidentally fell down a flight of stairs.

欧文斯意外地在一段楼梯上摔倒。

6·My wife's pregnant, and she fell down a flight of stairs.

我怀孕的妻子从楼梯上摔了下来。

7·Speeding up, slowing down. A pretty face, a flight of stairs.

心跳加速，心跳减速。美丽的面庞，一段楼梯。

8·I now marched up the 45-degree ladder as if up a flight of stairs.

现在，我在45度的梯子上行走，仿佛走在一段楼梯上。

9·In another, toys were placed at the top of a flight of stairs.

在另一个实验，玩具放在航班的最高一层楼梯里。

10·Gorky once had said a flight of stairs that the book is human progress.

高尔基曾经说过“书是人类进步的阶梯。”