announce和declare什么区别?

proclaim,declare和announce有什么区别? 请问.declare 和announce有什么区别 declare和announce的区别 announce和declare的区别 state announce declare区别 declare announce的区别? 区别announce,declare state claim announce declare区别 declare与 announce的区别 clarify declare announce怎么区别 claim declare announce这三者有什么主要的区别? 请问declare和announce以及claim的区别