有关voa英语的,谢谢了姐,

有关voa英语的,谢谢了姐,
Singers and musicians produced a sad, emotional style of playing that became known as the blues.
became known as 是一个短语吗?我这记得beknown as
there's just going to be a great array of options out there for consumers who would like a tablet.
不会翻译,那些是一个词组?out there 什么意思?be going to=will这我知道,那a great array of是一个词组吗? options在这又是什么意思?后面的那个who 好像是做 consumers的定语从句吧?
blacks would vote by a large majority for the
Democratic presidential candidate, Franklin Roosevelt
不会翻译,by a large majority for 什么东西,哈哈,谢谢了,因为如果复杂的语法我就蒙了,谢谢老师.
blacks would vote by a large majority for the
Democratic presidential candidate, Franklin Roosevelt