To fill in time, she scanned the room and counted how many things were brown.

闲来无事，她扫视整个房间，数着有多少东西是棕色的。

It's simply one of those words that Americans use sometimes to fill up time or space in their conversation.

。 这只是美国人有时用来填补谈话时间或空间的那些词之一。