impression和memory区别

impression是印象的意思，而memory则是记忆的意思，区别可以从以下例子看出：

The graduation gave me deep impression, I believe I will remember it my memory for lifetime. That is precious memory. 毕业给我留下了深刻的印象，我相信我会铭记一生。 那是珍贵的记忆。