Howimportantisyourmobilephone,betterknowntoAmericansasacellphone?谁帮我翻译下这个句子,特别是后半句,我不知道是个什么固定词组的用法、、、指出后半句的用法、、、不只是翻译

Question

How important is your mobile phone,better known to Americans as a cell phone?
谁帮我翻译下这个句子,特别是后半句,我不知道是个什么固定词组的用法、、、
指出后半句的用法、、、不只是翻译

Answer 1

1.你的手机,美国人更愿称它为cell phone的东西,很重要吗
（cell phone和mobile phone都是手机的意思）
2.be known to sb as something 是被动用法,意思是,作为某种方式为人熟知,
例如,sb knows sth,变成被动就是sth is known to sb
3.A is well known to sb as sth A以某种方式为人熟知
4.be better known to sb as sth 是be well known to sb的比较级变形,意思是以某种方式更为人熟知.,
例如
He was better known to the world as "Duke" Ellington .
而更多的人知道他叫艾灵顿公爵