trisistor

例句：

1. 1. The three-body problem is a complex physics problem that has fascinated scientists for decades.
   三体问题是一个复杂的物理学问题，几十年来一直吸引着科学家的关注。
2. 2. In the three-body problem, two objects are moving towards each other with a third object between them.
   在三体问题中，两个物体以第三个物体为中介向彼此移动。
3. 3. The discovery of the three-body problem has led to new insights into the behavior of celestial bodies.
   发现三体问题已经对天体的行为产生了新的理解。