区别：
Acknowledge 表示承担使某事公开的责任
Admit 常常暗含不情愿承认某人的行为或接受不同的观点
用法解释及举例：
acknowledge：英 [əkˈnɒlɪdʒ] 美 [əkˈnɑ:lɪdʒ] vt.承认;鸣谢;对…打招呼;告知已收到
举例：
Naylor acknowledged, in a letter to the judge, that he was a drug addict
内勒在给法官的信中承认自己吸毒。
He is also acknowledged as an excellent goalkeeper
他也被公认为是一名出色的守门员。
The army sent me a postcard acknowledging my request.
军队寄给我一张明信片告知我的申请书已收到。
He saw her but refused to even acknowledge her.
他看见了她，却连招呼也不打。
Doran stuck his head out of the window to acknowledge the cheering
多兰将头探出窗户向欢呼的人们致谢。
admit：英 [ədˈmɪt] 美 [ædˈmɪt] vt.& vi.许可进入;承认，供认vt.允许;确认vi.承认;允许
举例：
I am willing to admit that I do make mistakes
我愿意承认我确实会犯错。
She was admitted to hospital with a soaring temperature
她因发高烧被送进医院。
He was admitted to the Academie Culinaire de France
他获准加入法兰西厨艺学会。
Embassy security personnel refused to admit him or his wife
使馆保安人员不允许他和夫人进入。
Up to two thirds of 14 to 16 year olds admit to buying drink illegally
14到16岁的青少年中多达2/3的人承认非法买过酒。