谁能帮忙讲解一下lead的用法

lead
[li:d]
vt. & vi.
带路, 领路, 指引
I'll lead; you must follow me.
我带路, 你一定得跟着我。
领导; 指挥
Who is going to lead?
谁来领导?
领先
Which horse is leading in the race right now?
现在赛马中哪匹马领先?
vt.
诱使
They led him captive.
他们将他活捉。
使过生活
We are leading a happy life.
我们过着幸福的生活。
n.
领导; 榜样
He is one of leads we should learn.
他是我们应该学习的榜样之一。
领先; 占上风
He has a lead of ten metres over the other runners.
他领先别的运动员十米。
主角, 主要演员
He's playing the lead in the new play.
他在这出新剧中担任主角。