誓言 /shìyán/ angolul

oath [oaths]▼(affirmed statement)
noun
[UK: əʊθ] [US: oʊθ]

pledge [pledges]▼(solemn promise)
noun
[UK: pledʒ] [US: ˈpledʒ]

promise [promises]▼(vow)
noun
[UK: ˈprɒ.mɪs] [US: ˈprɑː.məs]

vow [vows]▼(a solemn promise to perform some act, or behave in a specified manner)
noun
[UK: vaʊ] [US: ˈvaʊ]