What does it even mean to manipulate a currency, anyway, and how does a country do it?

无论如何，操控货币又是什么意思？那么一个国家又是怎么做的呢？

youdao

"Simply stated, China is too big of a player in the world economic to manipulate their currency."

VOA: standard.2010.03.23

On April 15 the Treasury Department will release a report listing countries that manipulate their currency.

VOA: standard.2010.03.23

There are also concerns that businesses or investors could seek to manipulate the currency, though the odds of that for now appear low.

WSJ: Myanmar Announces Currency Reform

There also are concerns that businesses or investors could seek to manipulate the currency, though the odds of that for now appear low.

WSJ: Myanmar Announces Currency Reform

Back in the world of floating exchange rates, countries wishing to have a trading advantage can manipulate their currency to be low and thereby have ultra-competitive prices for export goods.

FORBES: We're All Currency Manipulators These Days