说到“一文不值”，最常用的一个单词是“worthless”, 意思是“无价值的；不值钱的”

The company‘s shares are now virtually worthless.

那家公司的股票实际上现在已经毫无价值。

He said the jewels were worthless fakes.

他说这些珠宝是毫无价值的赝品。

另外一个表达“It counts for nothing.”指“毫无价值”

If I fail the test after weeks of studying, all of that effort will count for nothing.

如果在几周的学习之后我还是挂科了，那么所有的努力将会变得毫无价值。

Surely all our work can‘t count for nothing!

当然，我们所有的艰苦工作不能是毫无价值的。

“count for something”可用来说表示“有意义，有价值”

I at least sent her a text. That‘s got to count for something.

我至少给她发了一条短信，这是有意义的。

第三个表达“turn to dust” 意思为“化为泡影，一文不值”

After I got passed over for that promotion, it was like my five-year plan just turned to dust.

在我错过那次升迁机会后，我感觉我这五年的计划变得化为泡影。

pass over (任命或晋升时) 对…未加考虑

Every promise they have made has turned to dust.

他们的承诺都一文不值。