" Currently, we have reached the red line, the danger line in terms of water scarcity, " said Aymen Hmem.

Aymen Hmem说：“目前，我们已经到达了水资源短缺的红线，即危险线。”

I don't know how else to describe the fact that they seemed to belong to a man who had done a lot of harm in his life, but had always kept just inside the danger lines.

我不知道还能用什么来形容这个事实，它们似乎属于一个在他的生活中造成了很多伤害但始终保持在危险线内的人。