1. In this stage, you start feeling more positive, and you try to develop comprehension of everything you don’t understand.
    在这个阶段里，你会开始变得积极起来，而且你会努力去理解所有你不理解的东西。

2. I began to understand that this trip to China was not just for me; it was for my mother, and her father, and his mother.
    我开始意识到这次中国之旅不仅仅是为我自己、也是为我妈妈、她的爸爸和她爸爸的妈妈安排的。

3. If one person does not understand something, possibly several others have the same problem.
    如果某人不理解某个问题，或许别人也有同样问题。

4. I understand why I imagined being robbed by a man: They're physically more dominating and I've never heard of anyone being robbed by a female.
    我没有回头，而是正眼朝前看，等着付款。我尽量不表现出自己的焦虑，而这种焦虑的产生仅仅是因为在一个位于名声不好的街区的加油站有一个黑人从我身后走来，而且他没有汽车。

5. In every field, experts examine changes to understand the state of the field.
    各个领域的专家都通过对变化的研究来了解该领域的状况。

6. I can't understand; he gives you no trouble."
    我真不明白，他并没给你添麻烦呀。"

7. First, they tried to understand what was wrong with the process (the treatment of heart patients after surgery).
    首先，他们试图弄明白这个疗程（对术后心脏病人的治疗）有何不妥。