Athough the dollar received a lift when markets were collapsing in late 2008 and early 2009, its trade-weighted index is within 2% of where it was when Lehman Brothers crumbled.) [: Q3 z* W. ?6 e; _9 T
请问大家,在这里面这个where 是个什么用法,修饰的什么?。从trade-weighted 后的句子怎么解释?谢谢!
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