two-tier的用法和样例：
词汇搭配
- two-tier exchange rate 双重汇率
- two-tier system 两层架构
- two tier rhombic 双层菱形天线...
- two-tier price system 两价制
- two-tier gold price system 双重金价制
- two tier dipole array 双层偶极子阵...
- two-tier market 双层市场
- two-tier gold market 双重黄金市场...
- two-tier gold price 双重黄金价格...
- two-tier loan 两级贷款
- two-tier exchange market [经] 双重汇率...
