| 释义 |
rust beltBrE /ˈrʌst belt/ NAmE /ˈrʌst belt/ noun (especiallyUS ) 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） |