Law enforcement officials had definitively identified Blanco as a potential suspect.

执法官员明确认为布兰科是个可能的嫌疑犯。

《柯林斯英汉双解大词典》

I think, personally speaking, that we need some further research before we can definitively say whether it helps or not.

我认为，就我个人而言，我们需要进一步的研究才能确定这是否有帮助。

youdao

When asked to make simple perceptual decisions such as matching a shape to its rotated image, for example, people often choose a definitively wrong answer if they see others doing the same.

例如，人们在被要求做出简单的感知决定，比如将一个形状与旋转后的图像进行匹配时，如果看到其他人做了一个绝对错误的选择，他们常常会跟着选错。

youdao

But this can only be definitively done at post mortem by examining the brain.

BBC: NEWS | Health | Hopes for better vCJD diagnosis

Your dentist can tell you definitively if you grind your teeth at night or not.

CNN: Dental screening that could save your life

None of them could definitively say what the remark was, an Oxford City Council spokeswoman said.

BBC: The Lord Mayor of Oxford Alan Armitage