swear/ swεər /

1.vi.
(curse) 咒骂

2.vt.
(promise) 宣誓

to swear that...
发誓…
3.vt.
(confirm) 起誓保证…

to swear to do sth
宣誓做某事
to swear an oath
起誓
to be sworn to secrecy/silence
发誓保守秘密/保持沉默