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. . e- k6 V+ b0 o6 ^+ u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!, W5 Y$ a; B2 n7 J& O+ j& f