他在房间里踱来踱去，思考着灾区的人们最需要什么。
He paced back and forth in the room(while)thinking about what people in the disaster-stricken area needed most.
他在房间里踱来踱去，思考着灾区的人们最需要什么。
He paced back and forth in the room(while)thinking about what people in the disaster-stricken area needed most.
