如果两个级别的熔断 — — 短期和长期交易暂停 — — 被设置得太过接近，一旦触发第一级，市场参与者会意识到第二级很快会来到，于是争相逃离市场。
If there are two levels of circuit breaker – a short-term and a long-term suspension of trading – and they are set too close to each other, once the first is triggered, market participants, realizing the second is likely to kick in as well, could stampede out of the market.