v. 出现；发生；站立
1.It is easy to understand why the first situation arises.
第一种情形出现的原因很容易理解。
2.The question arises as to whether or not he knew of the situation.
问题是，他对局势是否了解。
3.Everything arises from many causes and conditions.
任何事物的产生都有它的起因和条件。
4.The stream of positive particles that meets the surge of electrons from the cloud often arises from a tall pointed structure such as a metal flagpole or a tower.
来自云层的电子流与正粒子流相遇，而这些正粒子流通常来自于高而尖的结构，如金属旗杆或塔。
5.And the clearest case of this arises with the emotions.
这个最清晰的例子，同情感一同出现了。
6.What should you do when one of these situations arises?
如果其中某种情况发生了，您将如何应对呢？
7.We will contact you again if the need arises.
如果有必要，我们会再次和你联系。