他对传统医学毫无信任。

He has no ___faith in conventional medicine.

判决之后，他们对司法体系完全失去了信任。

After the verdict, they had lost all ___faith in the justice system.

帮助年轻人对未来抱有信心是很重要的。

It's important to help young people have ___faith in their future.