ingenuous

1. ADJ If you describe someone as ingenuous, you mean that they are innocent, trusting, and honest. 天真的; 老实的[正式] [ADV with v, ADV adj]

He seemed too ingenuous for a reporter. 他好像太天真诚实，不适合做记者。

2. ingenuouslyADV

Somewhat ingenuously, he explains how the crime may be accomplished. 他有点天真地解释了这一罪行可能是如何实施的。