亲吻，被认为是远古的人类互动形式，其年代和人类本身一样久远。

Kissing is considered to be an ancient human interaction, as old as humanity itself.

youdao

亲吻，被认为是远古的人类互动形式，其年代和人类本身一样久远。

Kissing is considered to be an ancient human interaction, as old as humanity itself.

youdao