"Being exposed means that your private parts are seen by others, so you have to protect yourself from being exposed, and you can't let others see your private parts." Zi Yan explained.

For this aspect of education, Mengmeng doesn't quite understand, Zi Yan said relatively little, and she also considered whether it would be inappropriate to speak so explicitly.

"Private places are your face, lips, neck, from neck to stomach, from waist to thighs. These are all private places that cannot be seen by others, let alone touched by others." Zhang Han answered simply .