The guarantee could be worthless if the shop goes out of business.

如果商店倒闭，这张保修单可能就没有价值了。

《柯林斯英汉双解大词典》

As a result, historical models might be worthless.

其结果是，历史模型或许毫无价值。

youdao

Ability is like a check, unless it is in cash, otherwise it will be worthless!

能力就像一张支票，除非把它兑成现金，否则毫无价值！

youdao

Dust on a lens could cause the entire output of the plant to be worthless.

FORBES: What's It Like in a Semiconductor Fab?

So any music library amassed like that would be worthless when the owner dies.

FORBES: Says Who? Emma Heming-Willis Denies Bruce Is Suing Apple Over Right To Bequeath His iTunes

Depending on what Independent put up as collateral, it may be worthless now.

ECONOMIST: Independent Insurance