stand for 与 represent区别

represent 多用来指实体代表；stand for多用在抽象物体代表,eg.what's the five stars stand for in our national flag?
Stand for和 Represent都是代表的意思,那它们在用法和词性上有什么区别呢?
答：1、stand for表示,代表：
stands for “yen”¥代表日元
What does UFO stand for?It stands for Unidentified Flying Objects.
2、represent（基本义为使用他物以表达或代表某物）
①表示,象征.The dove represents peace.鸽子象征和平.
②代表/理 He represents our class.他代表我们班级.
He represented the principal at the ceremony.他在典礼上代理校长.