http://www.ft.com/cms/s/0/a2992d28-7a00-11de-b86f-00144feabdc0.html?nclick_check=1

Humbled by the financial crisis and heavily reliant on Beijing to climb out of it, Washington has shifted gear, relegating the currency to a subset of its push for broader economic reforms in China.

The irony of the US retreat on the renminbi, though, is that China has been powerless to wean itself off its addiction to buying US debt, the other side of the bilateral financial ledger.

uneasy 不安な，心配な

greenback ドル紙幣

humble 〈人の高慢・権威などを〉くじく，折る.

reliant 頼りにして

subset 部分集合

wean 〈人を〉〔…から〕引き離す