swore on

• v. 凭 ... 发誓

swore on的用法和样例：

例句

1. I swear on the head of my son here that I made no threat to the man.
   我凭我儿子的头发誓，我未对那人造成威胁。
2. She swore on her honour that she had never seen the man before.
   她以自己的名誉发誓说，她从未见过那个男人。