In reflection, my firm belief in the power of the brand was naive, not to mention a bit snobby. 我对…的坚定信念很幼稚
I can't believe you were so naive as to trust him! 真是难以相信你会幼稚到信任他！
Their approach to life is refreshingly naive. 他们对待生活的态度天真率直，令人耳目一新。
She has lost none of her naivety. 她丝毫没有失去那份天真烂漫。