I will offer myself to the state as an emergency arises.

一旦发生紧急情况，我一定会为祖国献身的。

The problem of pollution arises along with the rapid development of industry.

随着工业的迅速发展，出现了污染问题。

On the positive side, when we cultivate these things, it also helps us deal much better with the negative when dead arises.

在积极的一方面，当我们注重培养这些事物，它就会在死者出现时，帮助我们更好地处理消极因素。

We will contact you again if the need arises.

如果有必要，我们会再次和你联系。

The question arises as to whether or not he knew of the situation.

问题是，他对局势是否了解。