He swore to wreak vengeance on those who had betrayed him.

他发誓要对背叛他的人进行报复。

《牛津词典》

She told stories that cracked me up and I swore to write them down so you could enjoy them too.

她讲了些让我哈哈大笑的故事，我发誓要把那些故事写下来，以便你们也可以欣赏。

《柯林斯英汉双解大词典》

He swore to himself to avoid music, as he hated getting to school extra early.

他对自己发誓要避免学音乐，因为他讨厌提早到校。

youdao

One by one,the senators swore an oath to be just.

VOA: special.2010.01.28

The president swore to tell the truth, the whole truth, and nothing but the truth.

CNN: Transcript: Judiciary Committee impeachment hearing

"You swore to me, you promised me, you promised, " Blake said in the 15-minute conversation.

CNN: Former cop says Blake wanted him to 'whack' wife

After that show, Springsteen swore to Appel that he would never open or play big venues again.

NEWYORKER: We Are Alive