Tā suīrán chéngnián le, què yīrán bǎoliú zhe yí fèn tóngzhēn.
Although she's grown up, she still keeps a touch of childlike innocence.
Tips
usage
童真 emphasizes purity and trust - the wide-eyed, undamaged worldview of a child. Compare 天真 (tiānzhēn, 'naive / innocent', often slightly negative when applied to adults) and 童心 (tóngxīn, 'a child's heart / playful spirit').
