When stressed by such things as temperature change or pollution, coral polyps will evict their colorful algae boarders, which can lead to coral bleaching and death.

• 当加压力的如温度变化或污染的时候，珊瑚虫将驱逐它们的华丽的海藻寄宿者，能导致珊瑚漂白和死亡。