I stand here today,humbled by the tas
2个回答

因为你这句演讲词是一共有3个句子浓缩而成的:

I stand here today,humbled by the task before us.

(I am) grateful for the trust you have bestowed (upon me).

(I have a) mindful of the sacrifices borne by our ancestors.

以上是分拆出来的3个句子.所以就是它含有3个相同语法形式的原因.

很高兴可以帮到你,希望会对你有助,并祝进步!