You fly back and warn the others. You got it? 你飞回去提醒大家 明白了吗
As your brother, I feel it's my duty to warn you: 身为弟弟,我觉得有义务提醒你
..or warn each other about the arrival of predators. 也许是警告同胞捕食者的出现
The yellow lights warn other creatures to keep out of its way. 黄灯亮起 以警告其他动物莫要挡道