Larry was mounting the stairs up into the attic.

拉里正在拾级而上到阁楼去。

《柯林斯英汉双解大词典》

Portable wooden stairs connected its four stories and if the village came under attack, residents could take refuge, pulling the stairs up behind them and firing at the enemy from the upper Windows.

便于拆卸的木质台阶四层楼，如果村子遇到了袭击，村民可以到这里庇护，把台阶拉上去，并且在楼上的窗口向敌人开枪。

youdao

How many stairs are there up to the second floor?

上到第三层一共有多少磴楼梯？

《牛津词典》

She shivered at its silence. She hurried up the stairs, almost with guilt.

VOA: special.2010.05.15

So, literally earlier today when I was on my way to campus I emerged from the Harvard Subway Station and I was about to exit the station up the stairs when I noticed this older woman who was standing by one of these things.

今天早些时候，在我从哈佛地铁站,到学校的路上,我即将走出地铁站，上楼梯时,我注意到一个老太太站在,这样的东西旁边。

哈佛公开课 - 计算机科学课程节选

Whether you take the elevator to the top of the Hancock Tower or whether you walk up the stairs, the change in gravitational potential is identical.

不管你是乘电梯,去大厦的顶层,或者是步行，重力势能的变化是相同的。

麻省理工公开课 - 固态化学导论课程节选

TechShop's overseers have, quite cannily, begun to offer up a portion of the warehouse's 17, 000 square feet as office space, giving its members a shot at some prime San Francisco real estate, a flight of stairs up from an impressive array of machine tools -- laser cutters, water jets and more 3D printers than most mortals have seen in one place.

ENGADGET

Strangers lent cell phones, moms held other moms' babies so they could have a break, passengers gave a hand to the elderly to ensure they got up and down the stairs safely and guys were ready and willing to lift wheelchairs of sick children up and down the stairs, as my friend Nick Burge did.

CNN: , Special to

Memmer had noticed before the trip to the amusement park that he would get winded walking up the stairs in his home and had trouble keeping up with his kids while they were playing.

CNN: Man's change began when he couldn't fit in ride with son