She took the stairs at a run.
她跑著上了樓梯。
Can you run as fast as Mike?
你能和邁克跑得一樣快嗎？
You can't run on a full stomach.
飽餐之后不能跑步。
They ran forward to welcome her.
他們跑向前去歡迎她。
I ran out onto the landing.
我跑出去上了樓梯平臺(tái)。
The dog ran up, wagging its tail.
那條狗搖著尾巴跑上前去。