swear by

• • 凭…发誓，以…的名义发誓；以…担保：

    He swore by the name of God that he couldn't want to let such a small matter come between me and my sleep.

    他以上帝的名义发誓，他不想让这样的小事妨碍我睡觉。

  • [口语]极其信赖，对…深信不疑：

    You should swear by Anna who's a good lawyer.

    你应该信任安娜，她是一位高明的律师。

    He swore by his old friends.

    他对他的老友深信不疑。

  • 认为…极好，对…评价很高：

    She swore by her inferior sherry to me.

    她极力向我推荐她的劣质雪利酒。

    He swore by my pictures.

    他对我的画评价很高。