"繁忙busy"或"确定sure"和"确认"在英语中是动词还是形容词或其他?

sure
KK:[]
DJ:[]
a.
1.确信的,有把握的[Z][F][+(that)][+wh-][(+about/of)]
I'm not sure whether our team will win.
我不能肯定我队是否能赢.
We are sure of his innocence.
我们确信他是无辜的.
2.一定的,必定的[Z][F][+to-v]
She is sure to write to you.
她一定会给你写信的.
3.确实的;可靠的
One thing is sure,he won't let you down.
有一点是确定的,那就是他不会让你失望.
Exercise is a sure way of losing weight.
运动是减肥的可靠办法.
4.稳健的;稳固的
ad.
1.【美】【口】的确;一定;当然
It's sure cold outside.
外面实在很冷.
busy
KK:[]
DJ:[]
a.
1.忙碌的,繁忙的[(+with/at/over)][(+in)][+v-ing]
He is busy at work.
他忙着工作.
I am busy writing a novel.
我正忙于写小说.
Jean is busy with her work.
琼忙于自己的工作.
2.充满活动的;热闹的
Yesterday I had a busy afternoon.
昨天下午我很忙.
3.【美】(尤指电话线)正被占用的,不通的
Sorry,her phone is busy.
抱歉,她的电话正在使用中.
4.【贬】杂乱的,使人眼花缭乱的
5.爱管闲事的
vt.
1.使忙于[+oneself][(+with/at/about/in)]
Bill busied himself with collecting materials.
比尔忙于收集资料.