vi.
(凭上帝或圣经等)宣誓；发誓：
I can swear by my reputation.
我敢以我的名誉起誓。
发誓保证，郑重作保
诅咒，咒骂
vt.
宣(誓)：
to swear an oath of office to the President
宣誓就职总统事宜
发(誓)，起(誓)：
to swear an oath on a Bible
手按《圣经》发誓
起誓保证；立誓要做(或遵守)：
I swear I will faithfully execute my office and my