Translation of "Determine" in Chinese

We weren't able to determine her whereabouts.

我们无法确定她的下落

Not material, but spiritual things determine our live.

我们的生活不是由物质，而是由精神来下定义的。

Is it possible to determine the diameter from the circumference?

用圓周能不能求得直徑？

Young children cannot determine what is right and what is wrong.

小孩子不能判断什么是对的，什么是错的。

It is difficult to determine the state and safety of the radiation leakage.

确认放射性能源泄漏的情况与安全是很困难的。

When people meet, first impressions determine more than 50 percent of whatever happens next.

在人际交往中，第一印象决定着将要发生的事情内容的百分之五十以上。