innocently

The child looked at her mother innocently and asked why the sky was blue.

(Chinese) 孩子天真地看着母亲，问道为什么天空是蓝色的。

He smiled innocently, unaware that he had just revealed a top-secret plan.

(Chinese) 他天真地笑了笑，没有意识到他刚刚泄露了一项绝密计划。