Question

as it's reported, it is more than 150 years__big beb, a famous attraction in london,wa founded.

Answer 1

"As
it's
reported,
it
is
more
than
150
years_since_Big
Ben,
a
famous
attraction
in
London,was
founded."
据报道，伦敦的一处著名景点，大本钟始建于150多年前。
since:自....以来。
所以直译是，据报道，自伦敦著名景点大本钟建成以来，已经过了150多年。
注：since通常是与现在完成时连用的。
所以原句应该是这样的：
"As
it
is
reported,
it
has
been
more
than
150
years
_since_Big
Ben,
a
famous
attraction
in
London
,was
founded."
据报道，自伦敦著名景点大本钟建成以来，已经过了150多年。
仅供参考。