饥饿和贫困依然是一种“无声的危机”， 仿佛是深深困扰全人类的“阿喀琉斯这踵”。 (Achilles heel)
Hunger and poverty have remained a "silent crisis". They are like the "Achilles heel". deeply troubling all human beings.
“silent crisis”对应题中“无声的危机”， “have remained”对应题中“依然是”。