Mary has my full confidence

yifei

Mary has my full confidence.

我完全信任玛丽。

名词confidence有两个主要的意思：对自己的信心，自信（A feeling of assurance, especially of self-assurance.）；对别人的信心，信任（Trust or faith in a person or thing.）。这句中使用的是后一种含义。
再如，I have every confidence in your ability to succeed.
我绝不怀疑你取得成功的能力。