I do solemnly swear I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States,and will to the best of my Ability,preserve,protect and defend the Constitution of the United S

I do solemnly swear I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States,and will to the best of my Ability,preserve,protect and defend the Constitution of the United S
I do solemnly swear
I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States,and will to the best of my Ability,preserve,protect and defend the Constitution of the United S

I do solemnly swear I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States,and will to the best of my Ability,preserve,protect and defend the Constitution of the United S
我庄严发誓
我庄严发誓我会履行美利坚合众国总统的职务,并尽我所能,维护,保护美利坚合众国宪法.

我郑重宣誓我将忠诚地执行美国总统的职务，并尽我最大的能力，保存，保护和捍卫美国宪法
大致是这个意思
支持1楼

我郑重起誓，我将忠于美利坚合众国的总统职责，并尽我所能，维护、保护和支持美国宪法。
do swear 是一个强调，在动词前加do，增强语气。