trade-weighted exchange rate index

例句：

1. 1. The trade-weighted exchange rate index has been a key indicator of economic growth in recent years.
   近年来，贸易加权汇率指数一直是衡量经济增长的关键指标。
2. 2.The trade-weighted exchange rate index is used to compare the relative strengths of different countries' currencies.
   贸易加权汇率指数用于比较不同国家货币的相对强弱。
3. 3. The trade-weighted exchange rate index has been closely watched by investors as it affects their investments in foreign assets.
   投资者密切关注贸易加权汇率指数，因为它影响他们对外国资产的投资。