Many things we now consider science were once untestable due to a lack of knowledge or technology.

由于缺乏知识或技术，许多我们现在认为是科学的东西曾经是无法验证的。

She thinks the notion of a hatred for all women deep in the psychology of some men is philosophically untestable.

她认为，在一些男性的心理深处，对所有女性的憎恨是哲学上无法验证的。