默克说，干预汇市的行为只在非常罕见的情况下才会有效，大多是市场非常清淡、成交量很低的时候。

'Intervention in currency markets only works in very rare environments, mostly when it's very quiet with low volume,' Mr. Merk says.

youdao

交易量依然清淡，多数交易员表示观望，市场波动剧烈，伦敦股市休市。

Volumes remained thin with many traders still away and markets volatile with London out of action.

youdao

当然，8月份的成交量清淡加剧了市场的波动性。

Of course, low volume during August trading has exacerbated market swings.

youdao