Don't depend on that rope; it is old and weak.

不要依靠那条绳子，它很旧，不结实。

youdao

Years went by, and the giant became very old and weak.

许多年过去了，巨人变得很老，很衰弱了。

youdao

Perhaps I'm not getting the right food, or I've been out in the sun too long or my heart is getting old and weak.

我可能得不到合适的食物、在阳光下逗留时间太长又或者我的心脏已经越来越老化和虚弱。

youdao

What was she going to do when she grew old and her back grew weak?

VOA: special.2010.03.28

He is an old,weak man and his case is severe.

VOA: special.2009.08.01

She was deemed too old and weak by the Canadian government to receive timely treatment for her colon cancer when she initially sought care.

FORBES: Congenital American Impatience Points to Obamacare's Failure

Even for those deeply worried about old capital and weak consumption there are grounds for optimism.

FORBES: Crisis Rules

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