请英语高人帮我翻译一段英文

题目

请英语高人帮我翻译一段英文
States are rounded rectangles. Transitions are arrows from one state to another. Events or conditions that trigger transitions are written beside the arrows. Our diagram has two self-transition, one on Getting SSN and another on Getting PIN.
The initial state (black circle) is a dummy to start the action. Final states are also dummy states that terminate the action.
The action that occurs as a result of an event or condition is expressed in the form /action. While in its Validating state, the object does not wait for an outside event to trigger a transition. Instead, it performs an activity. The result of that activity determines its subsequent state.
Activity diagrams
An activity diagram is essentially a fancy flowchart. Activity diagrams and statechart diagrams are related. While a statechart diagram focuses attention on an object undergoing a process (or on a process as an object), an activity diagram focuses on the flow of activities involved in a

答案

状态是用圆角矩形来表示的.转移则是使用带箭头的连线表示.触发转移的事件或者条件写在箭头的旁边.我们的图上有两个自转移.一个是在Getting SSN,另一个则在上Getting PIN.初始状态（黑色圆圈）是开始动作的虚拟开始....