The old and weak people easily catch the flu.

年老体弱的人容易患流感。

youdao

Unlike typical flus, which usually hit the old and weak, the young and healthy appear to be falling victim to this new disease.

年轻健康的人似乎成为了这种新病毒的易感人群，而不像普通的流感病毒那样，通常是年老体衰的人感染。

youdao

For as long as I can remember, I have wished to ease the burdens of life for those who, through no fault of their own, are old or weak or needy, and I will try to help them.

除非我失去记忆，我一直希望减轻老者、弱者和穷人的生活重负，因为老弱贫困不是他们自己的过错，我会尽我所能帮助他们。

youdao

As is often the case in Wall Street's Darwinian culture, the culling is expected to affect the old and the weak.

WSJ: Wall Street Gets Lean

"It is reprehensible that women, the old and the weak in our society should be targeted for alleged sorcery or wrongs that they actually have nothing to do with, " O'Neill said.

NPR: Accused Witch Burned Alive In Papua New Guinea

Mr. MEYERS: Well, I suppose the simple power of the theme and the idea that a man who is weak and poor and old, and has gone through tremendous physical hardships, including having his hands sort of torn up by the rope and the struggle, does in fact endure, and prevail, even though he's lost what he's fought for, because the sharks have eaten the marlin.

NPR: The Enduring Depths of 'Old Man and the Sea'