it's spend long

这个句子怎么分析啊.it's better for students who spend long time sitti It's a long long journey, Life ,it's a long long journey it's a long long journey it's a long story. It's been so long It's been a long it's a long road it's a long long journey的中文翻译? It's one meter long.请问这里的 long 词性? It's a long long story 的歌名是什么呀? it's a long time什么意思