be formed of
Adam is from Canada. I am,too.亞當來自加拿大我也是
make/consist/compose/form用法 (A) be made of : 用....做的, 例 This desk is... of hydrogen and oxygen. (水由氫和氧組成) (D) be formed of: 由...構成, 不過正確的應該是 be formed with...
I think "bridge" here is formed by human being. That means they used 800 people to form...