essay 题目的理解!

我的一道essay 题目是" describe the qualities of an effective leader you have known, share at least two examples of ways ....."

这里" you have known" 是指你再生活中认识的人么? 还是听说过就可以?

我帮你在金山词霸里查了一下：

know
know
AHD:[n½]
D.J.[nou]
K.K.
v.（动词）
knew[n›, ny›] known[n½n] know.ing， knows
v.tr.（及物动词）
To perceive directly; grasp in the mind with clarity or certainty.
通晓，领悟：直接地理解；在心中清晰或明确地掌握
To regard as true beyond doubt:
确信，认为：认为是确实的，无可怀疑的：
I know she won't fail.
我确信她不会输
To have a practical understanding of, as through experience; be skilled in:
了解，熟练，擅长：通过经历，对…有实践上的了解；熟练于某事：
knows how to cook.
擅长烹饪
To have fixed in the mind:
牢记：印在脑子里：
knows her Latin verbs.
记住她的拉丁动词
To have experience of:
经历过：
“a black stubble that had known no razor”(William Faulkner)
“很久没刮过的黑胡茬”(威廉·福克纳)
To perceive as familiar; recognize:
察觉，认得：看上去觉得熟悉；认识：
I know that face.
我认识那个人
To be acquainted with:
与…熟悉：
He doesn't know his neighbors.
他和邻居不熟
To be able to distinguish; recognize as distinct:
辨别：能够区分；找出不同点：
knows right from wrong.
辨别对错
To discern the character or nature of:
看出，辨识：看到…的特征或性质：
knew him for a liar.
看出他是个骗子
Archaic To have sexual intercourse with.
【古语】 与…发生性关系
v.intr.（不及物动词）
To possess knowledge, understanding, or information.
拥有知识、理解力或信息
To be cognizant or aware.
知道，明白

in the know【非正式用语】
Possessing special or secret information.
知道的，消息灵通的：掌握特别或秘密的信息的
you know【非正式用语】
Used parenthetically in conversation, as to fill pauses or educe the listener's agreement or sympathy:
你知道，你要知道：在谈话中作插入语，用于填补停顿或获取听者的赞同或认同：
Please try to be, you know, a little quieter. How were we supposed to make camp in a storm like that, you know?
请你尽量安静一点。你知道，我们在那样的暴风雨中怎么扎营呢?

我個人看法是，應該都可以，只要舉得出例子，支持你的論點。

我没查字典

不过老美不会觉得你写他们的总统事迹靠谱儿吧～

还是写自己认识的好，因为这是你自己观察体会到的

其实这就是在问，你觉得什么样的人才是好leader