And were there any other symptoms before then or did this condition start quite suddenly?

在感觉气急之前有其他的症状吗？是突然就觉得气急吗？

The " butterfly effect" describes the high sensitivity of many systems to tiny changes in their starting conditions.

“蝴蝶效应”描绘的是诸多系统对初始条件中微小变化的高敏感度。

The centre was a pioneer in using satellites to fill gaps in the data over the oceans, and in developing ensemble forecasts that generate a range of outcomes by employing slightly different starting conditions to produce multiple predictions.

该中心在运用卫星进行气象观测，弥补海洋气象数据不足方面处于领先地位；此外，它还开发出一套名为“系集预报”的模型，即通过利用气象起始状况的细微不同来得出多项预测从而得到多个预报结果。