Rust Belt 铁锈带
"Rust Belt" is a term that refers to an area of the northern United States. The area is mostly the states near the Great Lakes, and some of them are considered to be Midwest states.
This area was once known for steel production and heavy industry. That industry has greatly decreased since the middle of the 20th century.
As the name might imply, the area has sort of turned to "rust", like what happens to old steel. Much of this decrease in industry is because of the United States using manufacturers from other countries.
It became an Industrial hub because of its proximity to The Great Lakes, canals, and rivers which companies used to access raw materials and ship out products.
Most Rust Belt cities, for example, Pittsburgh, Pennsylvania and Youngstown, Ohio, have had a very large decrease in their population since the 1950s and 1960s. （wikipedia.org/wiki/Rust_Belt）
Biden Leads In Key Rust Belt States
April 22, 2020 at 9:42 pm EDT By Taegan Goddard 343 Comments
A new Reuters/Ipsos poll in three key battleground states finds Joe Biden leading President Trump in all of them.
Michigan: Biden 46%, Trump 38% Pennsylvania: Biden 46%, Trump 40% Wisconsin: Biden 43%, Trump 40%
Once again, Trump’s vote share under performs his approval rate in all three states.
宾州: 拜登占46% 特朗普占40%