customs wall

• 关税壁垒

customs wall的用法和样例：

例句

1. Within a few months, all customs barriers, quantitative restrictions and discriminatory practices were swept away.
   短短几个月，一切关税壁垒，配额限制，以及各种差别对待的惯例都一扫而光。
2. Suppose we make our tariff wall so high that it becomes absolutely prohibitive, and no imports come in from the outside world at all.
   假定我们设立的关税壁垒很高，完全是禁止性的，让人根本不可能从国外进口商品。