a dialogue between two states的用法和样例：
- A pastoral poem, usually in the form of a dialogue between shepherds.
- a mode of operation of a data processing system in which a sequence of alternating entries and responses between a user and the system takes place in a manner similar to a dialogue between two persons
- The token initiates a dialogue between it and the security server.
- Make up a dialogue between the two boys and then write it down in your exercise book.