swear by的用法和樣例：
例句
用作動詞 (v.)
- You will have to swear before the judge.
你必須在法官面前起誓。 - Your children have forsaken me and sworn by gods that are not gods.
你的兒女離棄我，又指著那不是神的起誓。
辭彙搭配
- swear by 對 ... 起誓
- not enough to swear by 僅僅一點點
