step upstairs

• 上楼梯

step upstairs的用法和样例：

例句

1. I am short of breath when going upstairs.
   我上楼梯会觉得喘不过气来。
2. I come upstairs into the world, for I was born in a cellar.
   我要上楼梯才进入这世界，因为我是在地窖里出生的。