She took the stairs at a run.
她跑着上了楼梯。
Can you run as fast as Mike?
你能和迈克跑得一样快吗？
You can't run on a full stomach.
饱餐之后不能跑步。
They ran forward to welcome her.
他们跑向前去欢迎她。
I ran out onto the landing.
我跑出去上了楼梯平台。
The dog ran up, wagging its tail.
那条狗摇着尾巴跑上前去。