| 释义 |
rust beltBrE /ˈrʌst belt/NAmE /ˈrʌst belt/ noun (especially US) a region that used to have a lot of industry, but that has now decreased in importance and wealth, especially parts of the northern US where there were many factories that have now closed 锈带（尤指美国北部衰败或萧条的工业区） |