請問幾句英文的意義？(20180529)?

一、我最近看到一段英文如下所示：
Narrator : They are looking at Paul's CDs.
Lauren : You have broad taste in music.
Paul : My classical music is in this section.I like all kinds of composers.
Lauren : Is this your rock and roll section over here?
Paul :Yeah. I love rock, as long as it's got bass and an electric guitar.
Lauren :
I tried to learn the electric guitar, but I couldn't get the hang of it.
I prefer the violin.
Paul : I've got my violin and opera music in the next room.
Lauren : Something tells me that moving all of your music to the smartphone will take forever.

二、我的問題如下：
問題1：
(1-1)句子：Lauren : Is this your rock and roll section over here?
(1-2)問題：請問這句的「over」是甚麼意思呢？

問題2：
(2-1)句子：Paul : Yeah. I love rock, as long as it's got bass and an electric guitar.
(2-2)問題：
(2-2-1)這裡的as long as看起來是連接詞，相當於中文的甚麼意思呢？
(2-2-2)這句的「it's」是甚麼意思呢？
(2-2-3)這句的「got」是甚麼意思呢？

問題3：
(3-1)句子：Paul : I've got my violin and opera music in the next room.
(3-2)問題：
(3-2-1)這句的「got」是甚麼意思呢？
(3-2-2)這句的「next room」若翻成「下一個房間」好像怪怪的耶！我應該要怎麼理解「next room」這個詞組呢？
我的問題如下：
問題1：
(1-1)句子：Lauren : Is this your rock and roll section over here?
(1-2)問題：請問這句的「over」是甚麼意思呢？

問題2：
(2-1)句子：Paul : Yeah. I love rock, as long as it's got bass and an electric guitar.
(2-2)問題：
(2-2-1)這裡的as long as看起來是連接詞，相當於中文的甚麼意思呢？
(2-2-2)這句的「it's」是甚麼意思呢？
(2-2-3)這句的「got」是甚麼意思呢？

問題3：
(3-1)句子：Paul : I've got my violin and opera music in the next room.
(3-2)問題：
(3-2-1)這句的「got」是甚麼意思呢？
(3-2-2)這句的「next room」若翻成「下一個房間」好像怪怪的耶！我應該要怎麼理解「next room」這個詞組呢？