Singapore's Finance Minister Tharman Shanmugaratnam said none of the ministers called for any sudden or significant change in exchange rates, but said they should remain flexible.

VOA: standard.2009.11.12

There's a lot of fluctuations in exchange rates over time.

随着时间的推移，汇率会不停地上下波动。

斯坦福公开课 - 经济学课程节选

There's a lot of volatility in exchange rates.

汇率的波动毫无定数可言。

斯坦福公开课 - 经济学课程节选

APEC ministers,including China, also agreed to pursue "market oriented" exchange rates.

VOA: standard.2009.11.12

Exchange rates go up and down.

汇率的上下波动很正常。

斯坦福公开课 - 经济学课程节选