to take an oath to do sth
He vowed never to change his resolve.
to pledge
He was steadfastly committed and would not waver.
to vow
He pledged that he would never waver.
to take an oath to do sth
He vowed never to change his resolve.
to pledge
He was steadfastly committed and would not waver.
to vow
He pledged that he would never waver.
to take an oath to do sth
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