童年的纯真常常被珍视和铭记。

The ___innocence of childhood is often cherished and remembered.

她拥有一种孩子般的纯真，我觉得非常吸引人。

She possesses a childlike ___innocence that I find remarkably appealing.

随着知识的增长，纯真的丧失是不可避免的。

With increasing knowledge comes the inevitable loss of ___innocence.