proclaim和claim在意义和用法上有哪些不同?

请不要只看中文意义翻译!
A:CLAIM:动词="To state to be true,to assert or maintain。。。"
(1) He claims to be the best runner in the class。/He claimed to be telling the truth 硬说/声称
(2) You must claim your money back if the goods are damaged。要求
(3) Does anyone claim this book?认领
(4) Mary planned to claim for damages against her employer。索赔
B:PROCLAIM:动词
(1) "to announce or state publicly" = Lin Dan was proclaimed the champion of the badminton tournament。公开宣布
(2) Idi Amin launched a coup and proclaimed himself the president of Uganda。宣告
(3) Prince William was proclaimed the King of Spain。宣告
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