It is merely my way of testifying my gratitude to him.是什么意思？

It is merely my way of testifying my gratitude to him.

这只不过是我知恩图报的方式罢了.

it

pron. 它，他，正好是所需的，事实[情况]；n. <美俚>傻瓜，笨蛋，<俚>绝妙的人，理想的东西，登峰造极；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

merely

adv. 仅仅，只不过，只是，纯粹，全然；

例句
In actuality, Teddie did not have a disorder but merely a difficult temperament...
实际上，小特迪并非哪不正常，而仅仅是属于困难型气质。

my

adj. 我的(I的所有格形式)；int. 啊呀，天啊；

例句
Racial discrimination is abhorrent to my council and our staff...
我的顾问班子和全体工作人员都对种族歧视深恶痛绝。

way

n. 道路，方法，方向，某方面；adv. 远远地，大大地；

例句
The way that American history is taught may change in order to accommodate some more of those cultures.
美国历史的授课方式可能会为了照顾到更多的文化而作改变。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

testifying

v. 作证，证明( testify的现在分词 )，证明，证实；

例句
The witness's demeanor in testifying provides useful guidance in making this assessment.
证人作证时的举止为作出上述判断提供了有用的指导.

gratitude

n. 感激，感谢，感激的样子，谢意，恩义；

例句
Relief and gratitude were written all over his face...
他一脸释然与感激。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。