acknowledge是什么意思

　　例句：

　　He saw her but refused to even acknowledge her.

　　他看到了她，但甚至都拒绝向她致意。

　　I allowed myself to acknowledge my true feelings.

　　我愿意承认自己的真实感情。

　　I would like to acknowledge my debt to my teachers.

　　我想向我的.老师表达我的感激之情。