他在房间里来回踱步，思考着他的决定。

He was pacing ___up ___and ___down the room, thinking about his decision.

球员们在训练时在篮球场上来回奔跑。

The players ran ___up ___and ___down the basketball court during practice.

我在街道上来回踱步，试图理清思绪。

I walked ___up ___and ___down the street, trying to clear my head.