骤变

His move to the left was not a sudden leap but a natural working out of ideas.

他转向左派不是一种骤变，而是思想意识的自然发展。

There´s been a sudden chang. Everyone, please keep quiet.

情况骤变， 请大家保持安静。

The clues I present here of symbiosis , directed mutation, saltationism, and self - organization, are far from conclusive.

我在本书中提供的种种事例，包括共生共栖 、 定向突变 、 骤变论以及自组织现象， 都还远远称不上是最后的定论。

Often minor ( eg tooth extraction ), sudden changes of temperature, viral infection, mood swings after the attack.

常在轻伤 （ 如拔牙 ） 、 温度骤变 、 病毒感染 、 情绪波动后发作。

But the combination of a rising load and falling water levels makes that process much harder.

但是不断增长的污染量和下降的水位组合是那些步骤变得更难了。