An argument can be either valid or invalid but not true or false.

论点可能有效或者无效，但是不能或真或假。

youdao

A lot of the stuff in the story is not true, but I have to say that where there's smoke there's fire.

故事中有许多事情都不是真的，但我不得不说，无风不起浪。

《柯林斯英汉双解大词典》

Ah, but that may not be true.

不过嘛，那可能不是真的。

《牛津词典》

This was not only true for farmers, but also for immigrants who came to the United States from foreign countries.

VOA: special.2010.05.13

But it's not quite true, because typically what they actually do that, is they say it's adjusted for risk.

但是这是不对的，因为它们实际上就是存在这种情况，它们会根据风险进行调整。

麻省理工公开课 - 计算机科学及编程导论课程节选

H for an ideal gas is only a function of temperature. This is not true for a real gas fortunately, but it's true for an ideal gas.

不正确的,但是幸运的是,对于理想气体是完全正确的。

麻省理工公开课 - 热力学与动力学课程节选

Sounds great but not true.

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Macroeconomists should take models for what they are: simplified views of the world that help us think about a complex issue, but are not true representations of the complexity itself.

ECONOMIST: Economic reasoning

It would be great if this were not true, but it is true and woe betide the woman who simply complains about inequity in the workplace.

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