gradually的意思是“渐渐地”，而finally的意思是“最后”、“终于”。
gradually
英['gr?d?u?li] 美['gr?d?u?li]
adv. 逐步地，渐渐地，渐进的
The sea is gradually encroaching on the land.
海水渐渐地侵蚀了陆地。
His interest in this subject gradually decreases.
他对这门学科的兴趣逐渐减退。
finally
英['fain?li] 美['fa?nl?]
adv. 最后，终于；决定性地
1.最后，最终
He had finally taken the plunge and quitted the job.
最后他还是断然决定放弃那份工作。
However, he finally took the plunge.
不过他到最后还是断然决定试一试。
2.决定性地
It's not finally settled yet.
这还没有彻底解决。
gradually，英语单词，主要用作副词，作副词时意思是“逐步地；渐渐地”。
短语搭配
Gradually forget渐渐的忘记 ; 渐渐忘记 ; 慢慢忘 ; 慢慢忘记
diminished gradually减少逐渐 ; 逐渐减弱 ; 逐渐减少
gradually forgotten渐渐遗忘 ; 逐渐忘记。
双语例句
1、Gradually I found that you are my only.
渐渐的我发现你就是我的唯一。
2、But it’s not for everyone, and it should be gradually incorporated into your running program.
但并不是每个人都合适这样做。 即便合适也应当逐渐地加入到你的跑步计划中去。
3、With this choice, I gradually realized that they like to do and their own advantage.
通过这次的选择，我逐渐意识到自己喜欢做的事情和自身的优势。[1]
同根词
词根gradual
gradual，adj 逐渐的；平缓的
gradual，n弥撒升阶圣歌集
gradualness? ，n逐渐；渐次；循序性