通常把 belong 同 to 连在一起(“属于”),但是 belong 也有不同 to 一起而是同别的状语或表语成分一起的时候,意思是“处在这个状况时很合适”。
Are you sure these documents belong together?你肯定这几份文件是应该放在一起的吗?
She doesn't belong married to Joseph.她嫁给约瑟夫是嫁错了人。
有时候 belong 单用,也可以表示“处在这个状况时很合适” 。
When he opened it he was taken aback — what was printed inside didn't seem to belong.(Graham Greene, The Power and the Glory, p.18)他把书打开,愣了一下,里面印的似乎不对头。