这些都是我们能确定的，而我们不能确定的是这个单一登录入口如何呈献给用户。

That's as much as we know for sure, but what is not clear is exactly how this SSO option will be presented to the user.

youdao

最后的结果是程序员不能确定输入何时无效，也不能确定是什么打断了和用户及数据本身的隐式的约定。

The end result is that the programmer cannot determine when the input is invalid, which breaks an implicit contract with users and the data itself.

youdao

场景驱动的开发 在不了解局部的情况下，不能确定整体，而在不了解整体的情况下，不能详细确定局部。

Scenario-Driven Development The whole cannot be defined without understanding the parts, and the parts cannot be defined in detail without understanding the whole.

youdao

Whether Gadamer means that when he speaks of gap or whether he simply means an abyss or a distance to be crossed I couldn't say.

当葛达玛说到间隙时是那个意思,还是仅仅认为它是需要跨越的一个深渊或者一段距离,我不能确定。

耶鲁公开课 - 文学理论导论课程节选

You know, speak even if you're not sure exactly what you're saying is totally correct,

即使你不能确定你讲的内容是否完全正确，你也要开口讲出来，

想学好英语吗？ - SpeakingMax英语口语达人

You feel physiologically aroused but you're not completely sure why, and you have to make up an explanation for it.

你感觉到性觉醒,但是不能确定是什么原因，你不得不给出一个解释。

耶鲁公开课 - 心理学导论课程节选